Complex sentence: He attended Eton College, later receiving private tuition, and was commissioned as a Lieutenant in the 2nd Volunteer Battalion of the Royal Welsh Fusiliers; on 20 January 1898 he married his cousin Lilian Florence Maud Chetwynd (1876--1962).
Split into simpler sentences: He attended Eton College, later receiving private tuition, and was commissioned as a Lieutenant in the 2nd Volunteer Battalion of the Royal Welsh Fusiliers. On 20 January 1898 he married his cousin Lilian Florence Maud Chetwynd (1876--1962).