Prime Minister of the United Kingdom senior order of chivalry, the Order of the Garter. The practice of creating a retired Prime Minister a Knight (or, in the case of Margaret Thatcher, a Lady) of the Garter (KG and LG respectively) has been fairly prevalent since the mid-nineteenth century. Upon the retirement of a Prime Minister who is Scottish, it is likely that the primarily Scottish honour of Knight of the Thistle (KT) will be used instead of the Order of the Garter, which is generally regarded as an English honour. Historically it has also been common for Prime Ministers to be granted a peerage upon
Father of the House also the current oldest serving MP aged . In New Zealand, the term Father or Mother of the House, as an unofficial title, designates the longest-continuously serving MP of the House of Representatives. The Father of the House has no official role in Parliament. Former Cabinet Minister Nick Smith succeeded former Prime Minister Bill English as Father of the House when the latter resigned in March 2018, having served continuously since the 1990 general election. In New Zealand's first election of , the electorate became the first to declare the election of a successful candidate, electing Hugh Carleton unopposed. In