" Alexander Gordon, Lord Rockville (1739 – 13 March 1792) was a Scottish judge.

Rockville was the youngest son of William Gordon, 2nd Earl of Aberdeen, by his third wife Lady Anne, daughter of Alexander Gordon, 2nd Duke of Gordon. He served as a Lord of Session from 1788 to 1792 under the judicial title Lord Rockville.

Rockville married Anne, daughter of William Duff and widow of William Dalrymple-Crichton, 5th Earl of Dumfries, in 1769. One of their sons was Sir William Duff-Gordon, 2nd Baronet. He died in March 1792. Lady Rockville died in 1811."

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http://en.wikipedia.org/wiki/Alexander_Gordon,_Lord_Rockville

http://histfam.familysearch.org/getperson.php?personID=I97522&tree=Nixon

http://thepeerage.com/p2400.htm