Sir Alexander Bosville Macdonald, 14th Baronet

Less than a month after his birth, he became de jure 14th Baronet Macdonald, of Sleat, in the Isle of Skye, County Inverness, in the Baronetage of Nova Scotia. Upon the death of his great-grandfather, Godfrey Macdonald, 3rd Baron Macdonald, 11th Baronet, in 1832 the baronetcy reverted as his three eldest children were born before his marriage to Louisa Maria La Coast (said to have been the illegitimate daughter of Prince William Henry, Duke of Gloucester and Edinburgh, himself a son of Frederick, Prince of Wales and a younger brother of King George III), 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 baronetcy passed, de jure, to his eldest son, Alexander (the grandfather of the 14th Baronet), while the Irish barony passed to his third son, Godfrey.^[3] Alexander's claim, however, was not formally recognised until a Court of Sessions decree on 4 June 1910.^[4] With this revival of the 1625 title, granted precedence as second of the Nova Scotia baronets at the time, the holder became the premier baronet.^[5] To 1908, the Gordon baronets of Letterfourie, created 28 May 1625, had been premier.^[6] On 30 June 1910 his name was legally changed to Alexander Wentworth Macdonald Bosville Macdonald confirmed by Lord Lyon King of Arms.^[1]

He inherited the family estates at Thorpe and Gunthwaite, both in Yorkshire, which came into the family through Elizabeth Diana Bosville (wife of Alexander Macdonald, 1st Baron Macdonald and heiress of her uncle, William Bosville). He was a Justice of the Peace and Deputy Lieutenant of East Riding, Yorkshire. He also served as High Sheriff of Yorkshire in 1901.^[7]

On 20 October 1886, Alexander married Alice Edith Middleton (1861–1935), a writer who was a daughter of John Middleton of Kinfauns Castle, Perth,^[8][9] a descendant of the "old Scottish Earls of Middleton."^[2] Together, they lived at Thorpe Hall, Bridlington,^[10] and were the parents of:^[1]

• Sir Godfrey Middleton Bosville Macdonald, 15th Baronet (1887–1951), who married Hon. Rachel Audrey Campbell, daughter of Scottish banker Colin Campbell, 1st Baron Colgrain and Lady Angela Ryder (a daughter of the 4th Earl of Harrowby), in 1917.^[1]
• Celia Violet Bosville (b. 1889), who graduated from Oxford University in 1960; she was appointed an Officer of the Order of the British Empire in 1919, and a Commander of the Order of the British Empire, in 1937.^[1]

Sir Alexander died at Thorpe Hall on 26 March 1933, and was succeeded in the baronetcy by his only son, Godfrey.^[2] His widow died on 15 July 1935.^[1]

From his father, Sir Alexander inherited the c. 1655 Arcadian Shepherds by Giovanni Benedetto Castiglione, and the c. 1563 The Miraculous Draught of Fishes by Joachim Beuckelaer.^[11] The Miraculous Draught of Fishes had been acquired by his great-grandfather, the 3rd Baron Macdonald, by 1821, and Arcadian Shepherds by the 3rd Baron Macdonald from Christie's in 1822 (from the 2nd Marquess of Bute).^[12] Both stayed in the family until the early 1907s when they were sold by his great-grandson, Sir Ian Bosville Macdonald, 17th Baronet. Arcadian Shepherds was sold at Christie's in 1970 to David Carritt, Ltd. (who sold it to the J. Paul Getty Museum in 1972) and The Miraculous Draught of Fishes was consigned in 1971 to Herner-Wengraf Ltd in London who sold it to the J. Paul Getty Museum.^[13]