Conversation so far:
Where was Arthur Wellesley, 1st Duke of Wellington born at
1st Duke of Wellington Arthur Wellesley was born at 6 Merrion Street, Dublin, County Dublin Ireland.
Did Arthur Wellesley, 1st Duke of Wellington have siblings
1st Duke of Wellington Arthur Wellesley was the third of five surviving sons (fourth otherwise).
Did Arthur Wellesley, 1st Duke of Wellington go to college.
1st Duke of Wellington Arthur Wellesley enrolled at Eton College, where he studied from 1781 to 1784.

Question: What did he study
Self-contained rewrite: What did Arthur Wellesley, 1st Duke of Wellington study at Eton College?