Conversation so far:
what is the capacity of royal hospital kilmainham
The capacity of royal hospital kilmainham, a musical venue for concerts and it has a capacity of c.150, and the Great Hall which has a capacity for up to 450.
What is the name of the founder of the Royal Hospital Kilmainham
The Royal Hospital Kilmainham was Founded by James Butler, Duke of Ormonde and Viceroy to King Charles II.

Question: Founded in what year
Self-contained rewrite: What year was the Royal Hospital Kilmainham founded.