House of Frohburg (en), Frohburger (de), Maison de Frobourg (fr), Casa di Frohburg (it), Casa de Frohburg (es)
Definitions
en
The House of Frohburg (also Froburg) was a noble family in medieval Switzerland, with possessions in what is now the canton
of Solothurn. They originate in the Wigger basin, near Zofingen. In the 10th century, they built Frohburg Castle on a hill
near Trimbach. They had the title of counts from the later 11th century. They ruled the lands between Olten and Solothurn,
and took parts of Aargau and Sisgau as fief from the bishop of Basel. They reached the peak of their power in the later 12th
and early 13th century, building a number of castles, and founding towns such as Aarburg, Liestal, Olten, Waldenburg, Wiedlisbach
and Zofingen. The last count of Frohburg was Hermann VI (d. 1367 as abbot of St. Urban's Abbey).