Complex sentence: They reside in a manor house in the southern English county of Wiltshire and they were previously served by a house-elf, Dobby, before Lucius was tricked into freeing him by Harry Potter.
Split into simpler sentences: They reside in a manor house in the southern English county of Wiltshire. The manor seems quite extravangant, with fountains and "peacocks strutting majesticlly" They were previously served by a house-elf, Dobby, before Lucius was tricked into freeing him by Harry Potter.