Complex sentence: In 1890 he was appointed vicar-general by Joseph Hubert Reinkens (1821-1896) at Bonn, where in 1896 became bishop of the German Old Catholic Church.
Split into simpler sentences: In 1890 he relocated to Bonn, where he was named vicar-general by Joseph Hubert Reinkens (1821-1896). In 1896 he succeeded Reinkens as bishop of the German Old Catholic Church.