Complex sentence: Hosenball, an American, moved to England at age 17 and attended Leighton Park School in Reading, Berkshire for one year and then Trinity College, Dublin for three years.
Split into simpler sentences: Hosenball, an American, moved to the United Kingdom at age 17 and attended Leighton Park School in Reading, Berkshire for one year. Afterwards, he lived for three years in Ireland, where he attended Trinity College, Dublin for three years.