Kloster Muri
Boswil and the surrounding regions were ruled by successions of counts and dukes of the Habsburgs up until 1379, when they began losing territories to the expanding Swiss Confederates. The lords of Hallwyl maintained control over Boswil from 1380, until it was handed over to the ministrations of Muri Abbey in 1483. Meanwhile, the eight "Old Cantons" of the Old Swiss Confederacy had unified and taken control in 1415, and jointly exercised power in all external affairs.