Question: Robert Collier, 2nd Baron Monkswell was briefly Under-Secretary of State for War under a man who was known by the courtesy title of?
Related documents: [0]  [DOC] Archibald Philip Primrose, 5th Earl of Rosebery, 1st Earl of Midlothian, (7 May 1847 – 21 May 1929) was a British Liberal statesman who served as Prime Minister of the United Kingdom from 5 March 1894 to 22 June 1895. Between the death of his father, in 1851, and the death of his grandfather, the 4th Earl, in 1868, he was known by the courtesy title of Lord Dalmeny. [END] 
[1]  [DOC] Robert Collier, 2nd Baron Monkswell (26 March 1845 – 22 December 1909), was a British Liberal politician. He was briefly Under-Secretary of State for War under The Earl of Rosebery in 1895. As a young man, he was a first-class cricketer active from 1866 to 1867. He was born and died in Chelsea. [END] 
Answer: 
Lord Dalmeny
Lord Dalmeny