William Moseley was born in the Cotswolds village of Sheepscombe, Gloucestershire, England. He is the son of Juliette (née Fleming) and Peter Moseley, a cinematographer. Moseley is the eldest of three children: Daisy (born 1989) and Benjamin Moseley (born 1992). Moseley attended Sheepscombe Primary School from September 1991 to July 1998, and then continued his education at Wycliffe College with final year at Downfield Sixth Form, Stroud (which is part of Marling School and its next door neighbour Stroud High School). He had to repeat upper sixth because he had taken so much time off school while filming The Chronicles of Narnia: The Lion, the Witch and the Wardrobe.