Question: When did Henry Dewar, 3Rd Baron Forteviot's father die?
Sentence (from "John Dewar, 1st Baron Forteviot"): John Alexander Dewar, 1st Baron Forteviot (6 June 1856 – 23 November 1929) was a Scottish businessman, elder son of the founder of Dewar's Scotch Whisky and a Liberal Member of Parliament.
Relevant evidence: Yes