Robert Hamilton-Udny, 11th Lord Belhaven and Stenton

Lieutenant-Colonel Robert Edward Archibald Hamilton-Udney, 11th Lord Belhaven and Stenton, CIE, DL (8 April 1871–26 October 1950) was a Scottish representative peer and a soldier.

On 15 November 1898, he married Kathleen Gonville Bromhead and they had two children:

*Hon. Julia Hamilton (1901–1971), married the 4th Baron Raglan and had issue.
*Robert Alexander Benjamin Hamilton, 12th Lord Belhaven and Stenton (1903–1961)

Kathleen died in 1935 and Hamilton married Sheila de Hauteville Pearson on 25 March 1938. They had two children:

*Hon. Margaret de Hauteville Hamilton (b. 3 July 1939)
*Dr. Hon. Victoria Edith Hamilton (b. 17 April 1941)

Hamilton rose to the rank of Lieutenant-Colonel in the service of the Indian Army and fought in the Chitral campaign in 1895, the Tirah Campaign from 1897 to 1898 and the Mesopotamia campaign from 1915 and 1918, where he was mentioned in dispatches.

In 1920, he succeeded his childless uncle as Lord Belhaven and Stenton. He was baptised as Robert Edward Hamilton but, in 1934, he legally changed his name to Robert Edward Hamilton-Udney.