page_title: Regensberg family
section_title: Regensberger Fehde and decline
hierarchical_section_title: Regensberg family / History / Regensberger Fehde and decline
caption_attribution_description: Replik des Grabsteins von Ulrich von Regensberg in Regensberg (Switzerland)
context_page_description: Regensberg was a family of counts from the Canton of Zürich in Switzerland. The family had possessions in the medieval Zürichgau from the probably mid-11th century and became extinct in 1331 AD. With the extinction of the male line, the city republic of Zürich laid claim to the Regensberg lands and formed the Herrschaft Regensberg respectively Äussere Vogtei.
context_section_description: During the mid-13th century, the relations between the House of Regensberg and the city of Zürich became strained, and Ulrich came in conflict with the House of Habsburg inheriting the lands of extinct House of Kyburg. In 1267/68 the disputes about the Kyburg lands led to a war respectively feud (so-called Regensberger Fehde) between the Regensberg family and an alliance of the city of Zürich and Rudolf von Habsburg who later became king; latter should have destroyed respectively conquered with adventurous tricks the surrounding Regensberg castles, among them Glanzenberg, Wulp Castle above the Küsnachter Tobel, Uetliburg, Friesenburg and Baldern castles on the Albis chain, and even the Uznaberg castle of the House of Toggenburg. Ulrich lost the war, and the House of Regensberg rapidly declined in power over the following decades: Grüningen was sold in 1269, the town of Kaiserstuhl was sold by a son of Lütold IX to the Bishop of Constance in 1294, Neu-Regensberg went over to Habsburg in 1302, and even the family crest was sold in 1317.
  Around 1290 Lütold VII already had left his home castle, but maybe up to his death in 1320 he settled again on Alt-Regensberg. The last representative of Neu-Regensberg also returned to the ancestral castle, after they had sold in 1302 the castle and town of Neu-Regensberg. In 1324 Lütold IX sealed the last document at Altburg castle and died in 1331 as the last of Neu-Regensberg; Alt-Regensberg already extinct in 1302. 
  Recent research assumes that their rule functions later were acquired by the lords of Baldegg and later by the family of Landenberg-Greifensee (both Habsburg ministerials), since the latter is documented as the owner of Altburg from 1354.
caption: replic of the gravestone of Ulrich I von Regensberg at the Regensberg Castle[1][2]
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