Robert Dalzell, 11th Earl of Carnwath

1847-1910

Lieutenant-Colonel Robert Harris Carnwath Dalzell, 11th Earl of Carnwath (1 July 1847 – 8 March 1910) was a Scottish hereditary peer and soldier. 

From Wikipedia:

Dalzell served with the Queen's Own Cameron Highlanders, rising to the rank of lieutenant-colonel. A Scottish representative peer, he died while walking from his home, Carnwath House, Fulham, to the House of Lords. The grave of the 11th Earl is marked "12th Earl of Carnwath", which was actually the title of his successor, his second (but only surviving) son Ronald. This increment to the 11th Earl's number stems from Robert Dalzell, 1st Lord Dalzell often (though incorrectly) being included as the 1st Earl.

From Findagrave:

11th (12th on the memorial) Earl of Carnwath was a Scottish nobleman and soldier. He was the eldest of five children born to Colonel Robert Alexander George Dalzell (1816–1878) and Sarah Bushby Harris (1821–1916). 

His mother was the daughter of John Harris RN (1782–1850), Treasurer of the London District of Upper Canada, and Amelia Ryerse, UE (1798–1882). The Harris family seat of Eldon House was a major social centre of the District capital of London, Ontario (in Canada). Eldon House, built in 1834, its 11-acre (45,000 m2) grounds and collections were gifted to the city of London as a museum in 1960. 

His paternal grandfather was Robert Alexander Dalzell, 6th Earl of Carnwath, having been restored to the title by an Act of Parliament in 1825. The 5th Earl of Carnwath had been found guilty of treason for taking part in the Jacobite rising of 1715, and though later pardonned, his titles fell under attainder until restored to his grandson. Three of Robert Dalzell's uncles succeeded to the title before he inherited it in 1887. On 19 August 1873 he married Emily Sullivan Hippisley (1853–1889).