Alexander Fraser, Lord Strichen (1700–1775) was a Scottish judge and Senator of the College of Justice.
[citation needed] Strichen Castle had been the family home since its construction in the 16th century.
[4] His position as Senator was filled by Alexander Lockhart, Lord Covington.
[5] He married Lady Lydia Ann Campbell (1692-1736) daughter of Archibald Campbell, 1st Duke of Argyll and widow of James Stuart, 2nd Earl of Bute.
[citation needed] Through this marriage he became stepfather to John Stuart, 3rd Earl of Bute, who later served as Prime Minister of Great Britain.