Warren was the son of Captain Henry Warren, the eighth son of Sir Robert Warren, 1st Baronet (see Warren baronets), and his wife Catherine Stewart, daughter of the Reverend William Stewart. He attended Trinity College Dublin, and entered the Middle Temple before being called to the Irish Bar in 1839.
Warren was the son of Captain Henry Warren, the eighth son of Sir Robert Warren, 1st Baronet (see Warren baronets), and his wife Catherine Stewart, daughter of the Reverend William Stewart. He attended Trinity College Dublin, and entered the Middle Temple before being called to the Irish Bar in 1839.