Conversation so far:
Where did JRR tolkien grow up?
Tolkien grew up in the Edgbaston area of Birmingham.
When was JRR Tolkien born?
John Ronald Reuel Tolkien was born on 3 January 1892.
Did JRR Tolkien get married?
Yes, he was married at St. Mary Immaculate Roman Catholic Church, Warwick, on 22 March 1916.

Question: Who was his wife?
Self-contained rewrite: Who was his wife?