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
Prime Minister of the United Kingdom of the Church of England, but the PM's discretion is limited by the existence of the Crown Nominations Commission. The appointment of senior judges, while constitutionally still on the advice of the Prime Minister, is now made on the basis of recommendations from independent bodies. Peerages, knighthoods, and most other honours are bestowed by the Sovereign only on the advice of the Prime Minister. The only important British honours over which the Prime Minister does not have control are the Order of the Garter, the Order of the Thistle, the Order of Merit, the Order of the Companions of Honour,