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Berthold II, Duke of Swabia

Berthold II, Duke of Swabia

Member of the House of Zähringen
Berthold II, also known as Berchtold II, was the Duke of Swabia from 1092 to 1098. After he conceded the Duchy of Swabia to the Staufer in 1098, the title of "Duke of Zähringen" was created for him, in use from c. 1100 and continued by his... Wikipedia