Complex sentence: Henry Quick (1792--1857), the Cornish poet, born on 4 Dec.1792, of humble parentage, at Zennor, where he spent his life, wrote from youth upwards rugged verses for the countryside.
Split into simpler sentences: Henry Quick (1792--1857), the Cornish poet, was born on 4 December 1792. He was of humble parentage, at Zennor, where he spent his life, wrote from youth upwards rugged verses for the countryside.