1246年腓特烈二世公爵死后，男系绝嗣，家族的势力迅速没落。

With the death of Duke Frederick II in 1246, the male line ended, and the family's power declined rapidly.

youdao

1246年腓特烈二世公爵死后，男系绝嗣，家族的势力迅速没落。

With the death of Duke Frederick II in 1246, the male line ended, and the family's power declined rapidly.

youdao