Complex sentence: In the years 1857--60, Swinburne became one of Lady Pauline Trevelyan's intellectual circle at Wallington Hall and after his grandfather's death in 1860, would stay with William Bell Scott in Newcastle.
Split into simpler sentences: In the years 1857--60, Swinburne became one of Lady Pauline Trevelyan's intellectual circle at Wallington Hall. After his grandfather's death in 1860, he would stay with William Bell Scott in Newcastle.