Complex sentence: Dickens found inspiration in the village academy, which he immortalised as Dotheboys Hall in Nicholas Nickleby; and the graves of two of the people who inspired characters portrayed by the great author remain in Bowes churchyard to this day.
Split into simpler sentences: Dickens found inspiration in the village academy, which he immortalised as Dotheboys Hall in Nicholas Nickleby. The graves of two of the characters portrayed by the great author remain in Bowes churchyard to this day.