Question: What is the cause of death of John Russell, 4Th Duke Of Bedford's father?
Sentence (from "Wriothesley Russell, 2nd Duke of Bedford"): Russell died in 1711, aged 30, from smallpox and was buried on 30 May 1711 in the 'Bedford Chapel' at St. Michael’s Church at Chenies, Buckinghamshire.
Relevant evidence: Yes