Brandon was appointed to the High Court in 1966, at the age of forty-six, and was assigned to the Probate, Divorce and Admiralty Division, where he was the sole Admiralty judge. He received the customary knighthood the same year. In 1971, the Division was reformed into the Family Division under the Administration of Justice Act 1970, and its Admiralty jurisdiction was transferred to the Queen's Bench Division. Brandon remained with the new Family Division, although he sat as an 'additional judge of the Queen's Bench Division' on secondment from the Family Division.[1]