On 29 December 1803, Macdonald married
Louisa Maria La Coast (1781–1835). She is said to have been the illegitimate daughter of
Prince William Henry, Duke of Gloucester and Edinburgh (a son of
Frederick, Prince of Wales and a younger brother of King
George III) and his mistress, Lady
Almeria Carpenter (a daughter of the
1st Earl of Tyrconnell), although she was baptised at
Leatherhead in 1781 as the daughter of Farley Edser (a steward to the
Duke of Gloucester who was a tenant of a dairy farm near
Hampton Court). Together, they were the parents of thirteen children, including: •
Godfrey William Wentworth Bosville-Macdonald, 4th Baron Macdonald (1809–1863), who married Maria Anne Wyndham, eldest daughter and co-heiress of George Thomas Wyndham, of
Cromer Hall,
Norfolk, in 1845. Her sister, Cecilia, married
Lord Alfred Paget (a son of the
1st Marquess of Anglesey). • Hon. Diana Bosville Macdonald (1812–1880), who married
John George Smyth, MP for
City of York who was a son of
John Henry Smyth (MP for
Cambridge University) and Lady Elizabeth FitzRoy (a daughter of the
4th Duke of Grafton), in 1837. Three of his children with Louisa were born before their marriage, so they were considered illegitimate, while the ten children born after their marriage were considered legitimate. The eldest three were eventually legitimized by Scottish law, but not by Irish law, therefore, the Scottish baronetcy passed to his eldest son, Alexander, while the Irish barony passed to his third son,
Godfrey. Lord Macdonald died on 13 October 1832 at
Bridlington, in England. His widow, the dowager Lady Macdonald, died on 10 February 1835, at
Bossall,
Yorkshire.
Descendants Through his eldest son Alexander, he was a grandfather of
Godfrey Wentworth Bayard Bosville,
de jure 13th
Baronet, who married Hon. Harriet Cassandra Willoughby (sister to the 8th
Baron Middleton); and Hon. Julia Louisa Bosville (1824–1901), who married
Henry Willoughby, 8th Baron Middleton. Through his eldest daughter Louisa,
Countess of Hopetoun, he is a direct ancestor of the
Marquesses of Linlithgow. Through his daughter Diana, he was a grandfather of
Diana Smyth, who married
Henry Lascelles, 4th Earl of Harewood. Through his daughter Marianne, he was a grandfather of
Henrietta Turnor, who married
John Scott, 3rd Earl of Eldon. Through his youngest daughter Octavia, he was posthumously a grandfather of
John Hope Johnstone,
de jure 8th
Earl of Annandale and Hartfell. ==References==