Lütold von Regensberg, IV

In 1206 the estate for the monastery was given by Liutold IV, Count of Regensberg, and it was confirmed on 6 May 1219 by his brother, Eberhard [Eberhard von Regensberg, II], Archbishop of Salzburg. The church and rights were transferred by Rudolf I von Rapperswil and Diethelm of Toggenburg to the convent in 1229.[2] On the upper Lake Zürich peninsula at Oberbollingen, a St. Nicholas Chapel is mentioned, where around 1229 a small Cistercian (later Premonstratensian) monastery was established by the Counts of Rapperswil. That nunnery is estimated to have been (administratively) part of the Rüti Monastery; in 1267 it was united with the nearby Mariazell Wurmsbach Abbey.
https://en.wikipedia.org/wiki/R%C3%BCti_Monastery