Career
He also functioned as chairman of the Royal Council of Governor (1865–1867), Master of the Treasury (1865–1867) and Lord Chief Justice (1884–1888). Sennyey strongly opposed the Hungarian Revolution of 1848. He participated in development of the Austro-Hungarian Compromise after 1862.
He was the leader of the conservative landowners" Right-wing Opposition which left the governing Liberal Party in 1875.
