Sigismund Felix Freiherr von Ow-Felldorf
On 11 January 1902, aged 46, he was appointed an Auxiliary Bishop of Regensburg and a month later he was named Titular Bishop of Arethusa.
On 18 October 1906, aged 51, he was appointed Bishop of Passau and installed in March 1907. He served until his death on 11 May 1936, aged 80.
He was a priest for 51 years and a bishop for 34 years.