Berthold II von Buchegg

Berthold von Buchegg, who ruled as Berthold II, came from the comital family of Buchegg near Solothurn, the son of Count Heinrich. A Teutonic Order commander and opponent of Louis the Bavarian, he became Pope John XXII's candidate when the see of Speyer fell vacant on Emich of Leiningen's death in April 1328.

The canons ignored a papal warning and elected Walram von Veldenz, a supporter of the Wittelsbachs; Berthold failed to prevail even by force and soon yielded the see. A papal bid to make him archbishop of Mainz after his brother Matthias died that September also failed.

Berthold was then installed at Strasbourg, where he was bishop from 1328 until his death. In 1329 he took the chronicler Matthias von Neuenburg into his service. He died at Molsheim on 25 November 1353.