in the army in the First World War, before entering parliament. Family Married The longest-married prime minister was James Callaghan who was married to his wife Audrey for 66 years from 28 July 1938 until her death on 15 March 2005. Four prime ministers married while in office, three to second wives: Robert Walpole to Maria Skerrett before 3 March 1738. She died after a miscarriage on 4 June that year, after at least 93 days' marriage, making this the shortest marriage ever held by a prime minister (although she previously cohabited as his mistress). The Duke of Grafton to Elizabeth Wrottesley on 24 June 1769. She survived him, dying in 1822. Lord Liverpool to Lady Mary Chester on 24 September 1822. She survived him. Boris Johnson married Carrie Symonds, his third wife, on 29 May 2021. He divorced both his first wife, Allegra Mostyn-Owen, and his second, Marina Wheeler. Widowed Widowed the longest The British prime minister widowed the longest is Lord Rosebery who died more than 38 years after his wife. Recently, the British prime minister widowed the longest is Harold Macmillan, who was widowed from 21 May 1966 to his death on 29 December 1986, a total of 21 years. Widowed the shortest The British prime minister widowed the shortest is James Callaghan, who died on 26 March 2005. His wife, Audrey Callaghan, died on 15 March 2005, only 11 days before him. Other widowed Divorced Three British prime ministers have been divorced. The Duke of Grafton divorced his first wife, Anne (née Liddell), by Act of Parliament passed 23 March 1769, during his term of office, then remarried on 24 June that year to Elizabeth Wrottesley. (Anne remarried on 26 March 1769 to John FitzPatrick, 2nd Earl of Upper Ossory and died in 1804 in Grafton's lifetime.) Anthony Eden, divorced his first wife Beatrice (née Beckett) in 1950 then remarried two years later to Clarissa Spencer-Churchill on 14 August 1952, before his term of office began. (Beatrice never remarried and died in 1957 in Eden's lifetime.) Boris Johnson divorced his first wife Allegra Mostyn-Owen in 1993 and married Marina Wheeler two weeks later. In 2018, Johnson and Wheeler separated, finalising their divorce in November 2020 during Johnson's term of office. Bachelors Four British prime ministers have been bachelors. The 1st Earl of Wilmington William Pitt the Younger Arthur Balfour Edward Heath Most children The most prolific