Chancellor of the Duchy of Lancaster January 2018. The previous holder of the post was Patrick McLoughlin who was given the post following Theresa May's appointment as Prime Minister. Before this the holder of the post was Oliver Letwin, who was appointed in July 2014 when he was also Minister for Government Policy (2010–2015); following the 2015 general election, he was also given overall responsibility for the Cabinet Office and made a full member of the Cabinet. Chancellor of the Duchy of Lancaster The Chancellor of the Duchy of Lancaster is a ministerial office in the Government of the United Kingdom that includes as part of
Minister of State for Commonwealth Relations Minister of State for Commonwealth Relations The Minister of State for Commonwealth Relations was a ministerial post in the Government of the United Kingdom from 1947 until 1966. The holder was responsible for assisting the Secretary of State for Commonwealth Relations in dealing with British relationships with members of the Commonwealth of Nations (its former colonies). After 1966 the post was merged with the Minister of State for the Colonies and became the Minister of State for Commonwealth Affairs. "Arthur Henderson held the post for less than two months before the position was abolished. It was then recreated in 1959."