Welf was the son of Albert Azzo II, Margrave of Milan, and Kunigunde of Altdorf. When Welf's maternal uncle, Welf, Duke of Carinthia (also known as Welf III), died childless in 1055, Welf inherited his property. In 1062 Welf married Ethelinde of Northeim, daughter of Otto, Duke of Bavaria.
Birth: Death: Count of Altdorf, Count in Swabia, Duke of Bavaria, Count in Alemannia, Duke of Auxerre Welf I or Welfo (died before 876) was a Swabian nobleman. He was a member of the Elder House of Welf. Welf originated from a distinguished dynasty of Franconian nobles. He is mentioned only once: on the occasion of...
Welf was the oldest son of Welf I, Duke of Bavaria, and his wife Judith of Flanders. In 1088  or 1089,  when Welf was still a teenager, he married Matilda of Tuscany ,  who was more than twenty years older than him, in order to strengthen the relation between his family and the pope during the Investiture Controversy between king and ...
Welf I, Duke of Bavaria. Welf I (died 6 November 1101, Paphos) was duke of Bavaria from 1070 to 1077 and from 1096 to his death. He was the first member of the Welf branch of the House of Este. In the Welf genealogy he is counted as Welf IV. Welf was the son of Azzo II of Este and his wife Chuniza of Altdorf.
- Welf II, Duke of Bavaria, Henry IX, Duke of Bavaria, Kunizza of Bavaria
- Albert Azzo II, Margrave of Milan
Other articles where Welf I is discussed: Henry IV: Early years: … IV, the new duke (as Welf I) of Bavaria, and with Rudolf, the duke of Swabia, Henry was forced to grant immunity to the rebels in 1073 and had to agree to the razing of the royal Harz Castle in the final peace treaty in February 1074.
The relationship between Welf I and all later members of the Swabian group (Welf, Duke of Carinthia, and his relatives, who were counts of Altdorf) is, again, known only through legend. The Elder House of Welf became extinct when Welf, Duke of Carinthia, died childless in 1055.
Welf was the oldest son of Welf I, Duke of Bavaria, and his wife Judith of Flanders. He became duke of Bavaria after the death of his father in 1101. In the Welf genealogy, he is counted as Welf V. In 1089, he married Matilda of Tuscany, she was 26 years older, in order to strengthen the relation between his family and...
Welf IV became duke of Bavaria as Welf I, in 1070. He abandoned his alliance with the Holy Roman emperor Henry IV to become an important supporter of the papal party in Italy. His 17-year-old son, Welf V (later Welf II of Bavaria), married the 43-year-old countess Matilda of Tuscany in 1089; the marriage ended in separation.
- Bavaria and Saxony
The House of Welf (German: Haus von Welf), also Guelf or Guelph, is a German dynasty that currently rules the Duchy of Brunswick-Lüneburg and is one of the current major powers in the Holy Roman Empire.
According to a family tradition, the ancestry of the Welfs can be traced back to the Skirian prince Edeko (d. 469), a confidant of King Attila the Hun, and to his son Odoacer, King of Italy from 476. Nevertheless, an early ancestor may have been the Frankish nobleman Ruthard (d. before 790), a count in the Argengau and administrator of the Carolingian king Pepin the Younger in Alamannia. The Elder House of Welf would rule Burgundy and Swabia, but both died off. The House of Welf is the older bra...
Henry IX, Duke of Bavaria, from 1120–1126, was the first of the three dukes of the Welf dynasty called Henry. His wife Wulfhild was the heiress of the house of Billung, possessing the territory around Lüneburg in Lower Saxony. Their son, Henry the Proud was the son-in-law and heir of Lothair II, Holy Roman Emperor and became also duke of Saxony on Lothair's death. Lothair left his territory around Brunswick, inherited from his mother of the Brunonids, to his daughter Gertrud. Her husband ......
- Otto IV, Duke of Brunswick-Lüneburg
- Welf I, Duke of Bavaria
- 11th century
In the following year, Welf III of Carinthia dies without having produced an heir. He bequeaths his property to Weingarten Abbey in Altdorf, where his mother is abbess. She in turn passes it to Welf, soon to be Duke Welf I of Bavaria.