[1] He graduated from St John's College, Cambridge with a Master of Arts.
[2] Upon the death of his elder brother Francis Stuart, 16th Earl of Moray on 20 November 1909, he succeeded as the 17th Earl of Moray (as well as the 9th Baron Stuart of Castle Stuart, the 15th Lord St Colme, 17th Lord Abernethy and Strathearn, the 17th Lord Doune)[3] and inherited Doune Castle, which had been held by the family since 1570.
[1] On 17 December 1890, Stuart married Edith Douglas Palmer (c. 1868–1945), daughter of the former Ellen Douglas and Royal Navy Rear-Admiral George Palmer.
Together, they were the parents of:[1] Lord Moray died on 19 April 1930 at age 75 and was succeeded in the earldom by his eldest son, Francis.
His widow, the dowager Lady Moray, died on April 1945.