Complex sentence: Although born in Cuckfield, West Sussex, Barwell grew up in Croydon, London, and was educated at the Trinity School of John Whitgift, Croydon and Trinity College, Cambridge where he studied Natural Sciences.
Split into simpler sentences: Although born in Cuckfield, West Sussex, at a very young age Barwell moved and subsequently went to school in Croydon, London. Barwell was educated at the Trinity School of John Whitgift, Croydon and Trinity College, Cambridge where he studied Natural Sciences.