Complex sentence: John Dudeney (his surname was pronounced like the word scrutiny), who was one of Sussex's most famous shepherds, tended the Kingston flock of 1,400 sheep on Newmarket Hill from 1799 to 1802.
Split into simpler sentences: John Dudeney (his surname was pronounced like the word scrutiny) was one of Sussex's most famous shepherds. He tended the Kingston flock of 1,400 sheep on Newmarket Hill from 1799 to 1802.