Career
Educated at the Royal Naval College, Dartmouth, Bentinck joined the Royal Navy in 1882. He took part in the Mahdist War in 1891, and was promoted to Commander on 31 December 1901. He was appointed Commander of the Royal Naval College, Osborne in 1913.
After the War he became Naval Secretary.
He became Commander of the 1st Battle Squadron in the Atlantic Fleet in 1921 and went on to be Commander-in-Chief of the Africa Station in 1922. In that capacity he was briefly Acting Governor-General of South Africa from December 1923 to January 1924.
He became Admiral Commanding the Reserve Fleet in March 1926 and then Commander-in-Chief, Plymouth later that year: he retired in 1929.