Welf was born in BET 1030 AND 1040, the son of Albert-Azzo II d'Este and Kunigonde von Altdorf. The place is not known.
He died on 06 NOV 1101 in Paphos (Πάφος), Cyprus .
He had two marriages/partners. His first wife was Ethelinde von Northeim, who he married in ABT 1068. The place has not been found. They had no known children.
His second wife was Judith de Flandre, who he married in ABT 1071. The place has not been found. Their three known children were Welf II (1071-1120), Heinrich IX (c1074-1126) and Kunizza (?-1120).
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Welf I (IV) von Kärnten |
Albert-Azzo II d'Este |
Albert-Azzo I d'Este |
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Kunigonde von Altdorf |
Welf II von Altdorf |
Rudolf II von Altdorf |
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Ermentrude de Luxembourg |
Frédéric de Luxembourg |
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Irmentrude von Gleiberg |
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| Event | Date | Details | Source | Multimedia | Notes | ||
|---|---|---|---|---|---|---|---|
| Birth | BET 1030 AND 1040 |
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| Death | 6 NOV 1101 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | FROM 1070 TO 1077 | herzog von Bayern | ||||
| Nobility Title | FROM 1096 TO 1101 | herzog von Bayern |
Note 1
In the Welf genealogy he is counted as Welf IV