Complex sentence: Peter Roach studied Classics at school (Priory Grammar School, Shrewsbury); at Oxford University (Brasenose College, 1962-6) he took Classical Honour Moderations before graduating in Psychology and Philosophy (PPP).
Split into simpler sentences: Peter Roach studied Classics at school (Priory Grammar School, Shrewsbury). At Oxford University (Brasenose College, 1962-6) he took Classical Honour Moderations before graduating in Psychology and Philosophy (PPP).