Diethelm II of Toggenburg
Diethelm II of Toggenburg (c. 1180–1235) succeeded his father Diethelm I as count. St. Gallen chronicles accuse him of having his younger brother Friedrich I murdered in 1226, in order to seize the town Wil and Alt-Toggenburg.
In the ensuing conflict with St. Gallen Abbey the Toggenburgs lost several estates, including Wil and Alt-Toggenburg. Between 1226 and 1228 he founded the Hospitaller commandery of Tobel, later the family burial place. His son Kraft I succeeded him.