Gebhard, provost of Strassburg, authenticated as vicar in temporalibus of the Bishop Gerhard of Konstanz that Count Rudolf and Johann, his son, to enlarge the spiritual welfare of their ancestors and the wife Elisabeth, with his permission to grant to the church Jonen in Rapperswil, whose feudal law belongs to the Counts, a resident priest donated for Sundays and public holidays (benefice, in German: Pfründe).

[6] The counselors hoped for support by Count Johann and offered probably in return the forgiveness of debt of the Herrschaft Rapperswil, as some sources hypothesize.

[7] Some, if not most of the refugees, were decades before their exile vassals of the Counts of Rapperswil, including the ancient councilors family Bilgeri those members lost six of their seats in the council of Zürich.

Graf Diethelm von Toggenburg moved On 21 September 1337 with a fleet, numerous soldiers and siege material from Zürich over the Obersee to the Grynau Castle.

Count Johann made the best of it and landed, hidden by the lakeshore Buechberg, silently his soldiers from Rapperswil crossing the lake.

From the wooded eastern slope of the mountain, Johann raided the Zürich troops carelessly encamped; which headless fled to their ships, and Graf Diethelm was taken as prisoner.

[8] Count Johann's children – Johann II, the oldest of three sons, Rudolf and Gotfrid, and Agnes – were set under guardianship of Albrecht, Duke of Austria, sealed by a document between the city of Zürich and the German King respectively Duke Albrecht on 21 November 1337.