Complex sentence: In 1791 he was appointed co-Paymaster of the Forces, having been made Vice-President of the Board of Trade in 1790, but he resigned the positions and also that of Treasurer of the Navy when he succeeded to his father's barony in June 1803.
Split into simpler sentences: In 1791 he was appointed co-Paymaster of the Forces, having been made Vice-President of the Board of Trade in 1790. He resigned the positions and also that of Treasurer of the Navy when he succeeded to his father's barony in June 1803.