Complex sentence: After the trial Lizzie and Emma moved to a large, modern house--which Lizzie christened Maplecroft--where their staff included live-in maids, housekeeper and coachman (or later, chauffeur).
Split into simpler sentences: After the trial Lizzie and Emma moved to large, modern new house, which Lizzie christened Maplecroft. The staff included live-in maids, housekeeper and coachman (or later, chauffeur).