Lords Commissioners of the Treasury concomitant, so much so that the Prime Minister's official residence, 10 Downing Street, is in fact the official residence of the First Lord of the Treasury, which title is named on the letter box. Salisbury, as a marquess of vast independent wealth, had no use of an official residence, instead living in his grander town house at 20 Arlington Street in St James's, and could instead bestow it as a perquisite to other ministers, along with the First Lordship itself. Other positions have been linked to the Prime Ministership as well. Continuously since 1968, when the position was created by
First Lord of the Admiralty the Admiralty was Richard Weston, 1st Earl of Portland, who was appointed in 1628. The First Lord was not always a permanent member of the board until the Admiralty Department was established as an official government department in 1709 with the First Lord as its head; it replaced the earlier Office of the Admiralty and Marine Affairs. During most of the 17th century and the early 18th century, it was not invariable for the Admiralty to be in commission, so there are gaps in the list of First Lords, and a small number of First Lords were for a time