Rüti Abbey
While Count Friedrich VII did have at least one illegitimate son, Johannes, he died on 30 April 1436 and found his last rest at the Rüti Abbey. The lords of Raron, Montfort-Tettnang, Sax-Misox, Brandis and Aarburg, they all had claims on the Toggenburg lands. When the city republic of Zürich, having documents sealed by Friedrich and Elisabeth von Toggenburg, also claimed the Toggenburg bailiwick, and the canton of Schwyz supported by Glarus also claimed lands and conquered the Toggenburg heartland, the Old Zürich War broke out.