van Doorn family tree

Jan I d'Avesnes Count of Hainault , 1218–1257 (aged 39 years)

Name
Jan I /d'Avesnes/ Count of Hainault
Given names
Jan I
Surname
d'Avesnes
Name suffix
Count of Hainault
Name
John I /of Avesnes/
Given names
John I
Surname prefix
of
Surname
Avesnes
Name
Jan /van Avesnes/ Graaf van Henegouwen
Given names
Jan
Surname prefix
van
Surname
Avesnes
Name suffix
Graaf van Henegouwen
Birth
Text:

Genealogie der Graven van Holland, Zaltbommel, 1969 , Dek, Dr. A. W. E., Reference: page 16.
Marriage
Text:

Genealogie der Graven van Holland, Zaltbommel, 1969 , Dek, Dr. A. W. E., Reference: page 16.
Death
Text:

Genealogie der Graven van Holland, Zaltbommel, 1969 , Dek, Dr. A. W. E., Reference: page 16.
Note
Source citation
Genealogics - Leo van de Pas
Text:

Genealogie der Graven van Holland, Zaltbommel, 1969 , Dek, Dr. A. W. E., Reference: page 16.
Source citation
Wikipedia
Note

BIOGRAPHY
Jan was born in Houffalize on 1 May 1218, the son of Bouchard d'Avesnes and Margarethe, Countess of Flanders and Hainault, the daughter of Baudouin VI-IX, Count of Flanders, Emperor of Constantinople. As the marriage of Margarethe and Bouchard was papally dissolved in 1221, he and his younger brother Baudouin were considered illegitimate (an elder brother Baudouin had died in infancy).

In 1223 Jan's mother married Guillaume de Dampierre and bore more children who could claim her inheritance. Thus Jan and his brother Baudouin undertook to receive Imperial recognition of their legitimacy and did so from Emperor Friedrich II in March 1243. On 5 December 1244 Margarethe inherited Flanders and Hainault and designated her eldest son by her second husband, Guillaume III de Dampierre, as her heir. Immediately a war, called the War of the Succession of Flanders and Hainault, started over the rights of inheritance, pitting Jan against Guillaume.

After two years of fighting, in 1246 Louis IX of France intervened to settle the conflict. He granted Hainault to Jan and Flanders to Guillaume. Nonetheless, conflict was reopened. Meanwhile, in September 1246 Jan married Aleida of Holland, daughter of Floris IV, Count of Holland and Machteld of Brabant, and sister of Willem II, Count of Holland. Jan and Aleida had seven children, of whom four sons had progeny: Jan II, Bouchard, Guy and Floris.

In 1250 Margarethe was forced to give over the government of Hainault to Jan. On 6 June 1251 Guillaume de Dampierre was assassinated and it was shown that the Avesnes brothers had financed the crime. On 4 July 1253 Jan defeated the armies of his mother Margarethe and her second Dampierre son Guy, at the battle of West-Capelle. Guy was imprisoned and Margarethe agreed to sell her rights to Hainault to Charles I Etienne, brother of Louis IX, if he would reconquer it from Jan. Jan's brother-in-law Willem II, Count of Holland, the Emperor-Elect, was convinced to grant Hainault (an imperial fief) and those Flemish lands within the Empire to Jan. Charles was defeated and King Louis, returning from the Seventh Crusade, ordered his brother to abide by his arbitration of 1246. On 22 November 1257 Guy de Dampierre finally relinquished Hainault, but Jan died on Christmas Eve 1257 in Valenciennes. He was succeeded by his son Jan II.
 

Great-grandparents

generation +3 relationship coefficient: 12.5% (Biological great-grandparents)

Jan has no great-grandparents recorded.

Grandparents

generation +2 relationship coefficient: 25.0% (Biological grandparents)

Jan has no grandparents recorded.

Uncles and Aunts

generation +1 relationship coefficient: 25.0% (Full siblings of biological parents)

Jan has no uncles or aunts recorded.

Uncles and Aunts by marriage

generation +1 no blood relationship

Jan has no uncles or aunts by marriage recorded.

Parents

generation +1 relationship coefficient: 50.0% (Biological parents)

Jan has no parents recorded.

Parents-in-law

generation +1 no blood relationship

Jan has 1 father-in-law and 1 mother-in-law recorded (2 in total).

Co-parents-in-law

same generation no blood relationship

Jan has no co-parents-in-law recorded.

Partners

same generation no blood relationship

Jan has one female partner recorded.

Partner of Jan  (1)

1 Aleida of Holland 1230–1284

Partner chains

same generation no blood relationship

Jan has no members of a partner chain recorded.

Siblings

same generation relationship coefficient: 50.0% (Full siblings)

Jan has no siblings recorded.

Siblings-in-law

same generation no blood relationship

Jan has no siblings-in-law recorded.

Co-siblings-in-law

same generation no blood relationship

Jan has no co-siblings-in-law recorded.

Cousins

same generation relationship coefficient: 12.5% (Children of full siblings of biological parents)

Jan has no first cousins recorded.

Nephews and Nieces

generation -1 relationship coefficient: 25.0% (Children of full siblings)

Jan has no nephews or nieces recorded.

Children

generation -1 relationship coefficient: 50.0% (Biological children)

Jan has 2 sons recorded.

Children-in-law

generation -1 no blood relationship

Jan has no children-in-law recorded.

Grandchildren

generation -2 relationship coefficient: 25.0% (Biological grandchildren)

Jan has 2 granddaughters recorded.

Grandchildren-in-law

generation -2 no blood relationship

Jan has 2 grandsons-in-law recorded.

Summary for the shown extended family

The extended family of Jan has 10 members (including Jan). (additional members of the partner chains are not counted)

Great-grandparents

generation +3 relationship coefficient: 12.5% (Biological great-grandparents)

Jan has no great-grandparents recorded.

Grandparents

generation +2 relationship coefficient: 25.0% (Biological grandparents)

Jan has no grandparents recorded.

Uncles and Aunts

generation +1 relationship coefficient: 25.0% (Full siblings of biological parents)

Jan has no uncles or aunts recorded.

Uncles and Aunts by marriage

generation +1 no blood relationship

Jan has no uncles or aunts by marriage recorded.

Parents

generation +1 relationship coefficient: 50.0% (Biological parents)

Jan has no parents recorded.

Parents-in-law

generation +1 no blood relationship

Jan has one father-in-law recorded.

Co-parents-in-law

same generation no blood relationship

Jan has no co-parents-in-law recorded.

Partners

same generation no blood relationship

Jan has no partners recorded.

Partner chains

same generation no blood relationship

Jan has no members of a partner chain recorded.

Siblings

same generation relationship coefficient: 50.0% (Full siblings)

Jan has no siblings recorded.

Siblings-in-law

same generation no blood relationship

Jan has no siblings-in-law recorded.

Co-siblings-in-law

same generation no blood relationship

Jan has no co-siblings-in-law recorded.

Cousins

same generation relationship coefficient: 12.5% (Children of full siblings of biological parents)

Jan has no first cousins recorded.

Nephews and Nieces

generation -1 relationship coefficient: 25.0% (Children of full siblings)

Jan has no nephews or nieces recorded.

Children

generation -1 relationship coefficient: 50.0% (Biological children)

Jan has 2 sons recorded.

Children-in-law

generation -1 no blood relationship

Jan has no children-in-law recorded.

Grandchildren

generation -2 relationship coefficient: 25.0% (Biological grandchildren)

Jan has no grandchildren recorded.

Grandchildren-in-law

generation -2 no blood relationship

Jan has 2 grandsons-in-law recorded.

Summary for the shown extended family

The extended family of Jan has 6 members (including Jan). (additional members of the partner chains are not counted)

Great-grandparents

generation +3 relationship coefficient: 12.5% (Biological great-grandparents)

Jan has no great-grandparents recorded.

Grandparents

generation +2 relationship coefficient: 25.0% (Biological grandparents)

Jan has no grandparents recorded.

Uncles and Aunts

generation +1 relationship coefficient: 25.0% (Full siblings of biological parents)

Jan has no uncles or aunts recorded.

Uncles and Aunts by marriage

generation +1 no blood relationship

Jan has no uncles or aunts by marriage recorded.

Parents

generation +1 relationship coefficient: 50.0% (Biological parents)

Jan has no parents recorded.

Parents-in-law

generation +1 no blood relationship

Jan has one mother-in-law recorded.

Co-parents-in-law

same generation no blood relationship

Jan has no co-parents-in-law recorded.

Partners

same generation no blood relationship

Jan has one female partner recorded.

Partner of Jan  (1)

1 Aleida of Holland 1230–1284

Partner chains

same generation no blood relationship

Jan has no members of a partner chain recorded.

Siblings

same generation relationship coefficient: 50.0% (Full siblings)

Jan has no siblings recorded.

Siblings-in-law

same generation no blood relationship

Jan has no siblings-in-law recorded.

Co-siblings-in-law

same generation no blood relationship

Jan has no co-siblings-in-law recorded.

Cousins

same generation relationship coefficient: 12.5% (Children of full siblings of biological parents)

Jan has no first cousins recorded.

Nephews and Nieces

generation -1 relationship coefficient: 25.0% (Children of full siblings)

Jan has no nephews or nieces recorded.

Children

generation -1 relationship coefficient: 50.0% (Biological children)

Jan has no children recorded.

Children-in-law

generation -1 no blood relationship

Jan has no children-in-law recorded.

Grandchildren

generation -2 relationship coefficient: 25.0% (Biological grandchildren)

Jan has 2 granddaughters recorded.

Grandchildren-in-law

generation -2 no blood relationship

Jan has no grandchildren-in-law recorded.

Summary for the shown extended family

The extended family of Jan has 5 members (including Jan). (additional members of the partner chains are not counted)

No family available

No family available

Great-grandparents

generation +3 relationship coefficient: 12.5% (Biological great-grandparents)

Jan has no great-grandparents recorded.

Grandparents

generation +2 relationship coefficient: 25.0% (Biological grandparents)

Jan has no grandparents recorded.

Uncles and Aunts

generation +1 relationship coefficient: 25.0% (Full siblings of biological parents)

Jan has no uncles or aunts recorded.

Uncles and Aunts by marriage

generation +1 no blood relationship

Jan has no uncles or aunts by marriage recorded.

Parents

generation +1 relationship coefficient: 50.0% (Biological parents)

Jan has no parents recorded.

Parents-in-law

generation +1 no blood relationship

Jan has 1 father-in-law and 1 mother-in-law recorded (2 in total).

Co-parents-in-law

same generation no blood relationship

Jan has no co-parents-in-law recorded.

Partners

same generation no blood relationship

Jan has one female partner recorded.

Partner of Jan  (1)

1 Aleida of Holland 1230–1284

Partner chains

same generation no blood relationship

Jan has no members of a partner chain recorded.

Siblings

same generation relationship coefficient: 50.0% (Full siblings)

Jan has no siblings recorded.

Siblings-in-law

same generation no blood relationship

Jan has no siblings-in-law recorded.

Co-siblings-in-law

same generation no blood relationship

Jan has no co-siblings-in-law recorded.

Cousins

same generation relationship coefficient: 12.5% (Children of full siblings of biological parents)

Jan has no first cousins recorded.

Nephews and Nieces

generation -1 relationship coefficient: 25.0% (Children of full siblings)

Jan has no nephews or nieces recorded.

Children

generation -1 relationship coefficient: 50.0% (Biological children)

Jan has 2 sons recorded.

Children-in-law

generation -1 no blood relationship

Jan has no children-in-law recorded.

Grandchildren

generation -2 relationship coefficient: 25.0% (Biological grandchildren)

Jan has 2 granddaughters recorded.

Grandchildren-in-law

generation -2 no blood relationship

Jan has 2 grandsons-in-law recorded.

Summary for the shown extended family

The extended family of Jan has 10 members (including Jan). (additional members of the partner chains are not counted)

No family available

Great-grandparents

generation +3 relationship coefficient: 12.5% (Biological great-grandparents)

Jan has no great-grandparents recorded.

Grandparents

generation +2 relationship coefficient: 25.0% (Biological grandparents)

Jan has no grandparents recorded.

Uncles and Aunts

generation +1 relationship coefficient: 25.0% (Full siblings of biological parents)

Jan has no uncles or aunts recorded.

Uncles and Aunts by marriage

generation +1 no blood relationship

Jan has no uncles or aunts by marriage recorded.

Parents

generation +1 relationship coefficient: 50.0% (Biological parents)

Jan has no parents recorded.

Parents-in-law

generation +1 no blood relationship

Jan has one father-in-law recorded.

Co-parents-in-law

same generation no blood relationship

Jan has no co-parents-in-law recorded.

Partners

same generation no blood relationship

Jan has no partners recorded.

Partner chains

same generation no blood relationship

Jan has no members of a partner chain recorded.

Siblings

same generation relationship coefficient: 50.0% (Full siblings)

Jan has no siblings recorded.

Siblings-in-law

same generation no blood relationship

Jan has no siblings-in-law recorded.

Co-siblings-in-law

same generation no blood relationship

Jan has no co-siblings-in-law recorded.

Cousins

same generation relationship coefficient: 12.5% (Children of full siblings of biological parents)

Jan has no first cousins recorded.

Nephews and Nieces

generation -1 relationship coefficient: 25.0% (Children of full siblings)

Jan has no nephews or nieces recorded.

Children

generation -1 relationship coefficient: 50.0% (Biological children)

Jan has 2 sons recorded.

Children-in-law

generation -1 no blood relationship

Jan has no children-in-law recorded.

Grandchildren

generation -2 relationship coefficient: 25.0% (Biological grandchildren)

Jan has no grandchildren recorded.

Grandchildren-in-law

generation -2 no blood relationship

Jan has 2 grandsons-in-law recorded.

Summary for the shown extended family

The extended family of Jan has 6 members (including Jan). (additional members of the partner chains are not counted)

No family available

Great-grandparents

generation +3 relationship coefficient: 12.5% (Biological great-grandparents)

Jan has no great-grandparents recorded.

Grandparents

generation +2 relationship coefficient: 25.0% (Biological grandparents)

Jan has no grandparents recorded.

Uncles and Aunts

generation +1 relationship coefficient: 25.0% (Full siblings of biological parents)

Jan has no uncles or aunts recorded.

Uncles and Aunts by marriage

generation +1 no blood relationship

Jan has no uncles or aunts by marriage recorded.

Parents

generation +1 relationship coefficient: 50.0% (Biological parents)

Jan has no parents recorded.

Parents-in-law

generation +1 no blood relationship

Jan has one mother-in-law recorded.

Co-parents-in-law

same generation no blood relationship

Jan has no co-parents-in-law recorded.

Partners

same generation no blood relationship

Jan has one female partner recorded.

Partner of Jan  (1)

1 Aleida of Holland 1230–1284

Partner chains

same generation no blood relationship

Jan has no members of a partner chain recorded.

Siblings

same generation relationship coefficient: 50.0% (Full siblings)

Jan has no siblings recorded.

Siblings-in-law

same generation no blood relationship

Jan has no siblings-in-law recorded.

Co-siblings-in-law

same generation no blood relationship

Jan has no co-siblings-in-law recorded.

Cousins

same generation relationship coefficient: 12.5% (Children of full siblings of biological parents)

Jan has no first cousins recorded.

Nephews and Nieces

generation -1 relationship coefficient: 25.0% (Children of full siblings)

Jan has no nephews or nieces recorded.

Children

generation -1 relationship coefficient: 50.0% (Biological children)

Jan has no children recorded.

Children-in-law

generation -1 no blood relationship

Jan has no children-in-law recorded.

Grandchildren

generation -2 relationship coefficient: 25.0% (Biological grandchildren)

Jan has 2 granddaughters recorded.

Grandchildren-in-law

generation -2 no blood relationship

Jan has no grandchildren-in-law recorded.

Summary for the shown extended family

The extended family of Jan has 5 members (including Jan). (additional members of the partner chains are not counted)

No family available

No family available