Question: Which conservative MP was known as Viscount Cranborne from 1903 to 1947 
Sentence (from "Robert Gascoyne-Cecil, 5th Marquess of Salisbury"): Robert Arthur James Gascoyne-Cecil, 5th Marquess of Salisbury, (27 August 1893 – 23 February 1972), known as Viscount Cranborne from 1903 to 1947, was a British Conservative politician.
Relevant evidence: Yes