Complex sentence: Gillian Clarke was born on 8 June 1937 in Cardiff and died at age 74, she was brought up in Cardiff and Penarth, though for part of the Second World War she was in Pembrokeshire.
Split into simpler sentences: Gillian Clarke was born on 8 June 1937 in Cardiff. She was brought up in Cardiff and Penarth, though for part of the Second World War she was in Pembrokeshire.