Alexander Macdonald, 1st Baron Macdonald

Alexander Macdonald, 1st Baron Macdonald DL ( – 12 September 1795) was a Scottish nobleman and Chief of Clan MacDonald of Sleat.

Early life Macdonald was the younger son of Sir Alexander Macdonald, 7th Baronet, and his wife Lady Margaret Montgomerie, a daughter of the 9th Earl of Eglinton.

He was educated at Eton and served with the Grenadier Guards.

In 1778 he raised the MacDonald's Highlanders and was Brigadier-General in the Royal Company of Archers. Between 1794 and 1795, he raised another regiment from the Highlands and the Islands. Godfrey Bosville Macdonald, 3rd Baron Macdonald (1775–1832), who married Louisa Maria La Coast, 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). Hon. Archibald Macdonald (1777–1861), who married Jane Campbell, daughter of Duncan Campbell of Arneave, in 1802.

Descendants Through his daughter Diana, he was a grandfather of thirteen grandchildren, including Sir George Sinclair, 2nd Baronet, a writer and an MP for Caithness who married Lady Catherine Camilla Tollemache; John Sinclair, who became Archdeacon of Middlesex; Capt. Archibald Sinclair of the Royal Navy; the Rev. William Sinclair, was Prebendary of Chichester (and was the father of Archdeacon of London William MacDonald Sinclair); and author Catherine Sinclair.