Queen Victoria replaced him. Salisbury remained prime minister for the remainder of Victoria's reign. On 23 September 1896, Victoria surpassed her grandfather George III as the longest-reigning monarch in British history. The Queen requested that any special celebrations be delayed until 1897, to coincide with her Diamond Jubilee, which was made a festival of the British Empire at the suggestion of the Colonial Secretary, Joseph Chamberlain. The prime ministers of all the self-governing Dominions were invited to London for the festivities. One reason for including the prime ministers of the Dominions and excluding foreign heads of state was to avoid having to
Queen mother current monarch. For example, Princess Victoria of Saxe-Coburg-Saalfeld was "the Queen's mother" when her daughter Victoria became queen regnant, but she was "not" "queen mother". The title in British usage is purely a courtesy title. While the wife of a king is called "queen", there is no constitutional or statutory recognition of "queen mother" as a title. There is no male equivalent to a queen mother (i.e. "king father"). This would occur only if the husband of a queen regnant outlived the queen and was thereafter father to the new king or queen. Such a situation has never occurred. The