Appears in Harry Potter: The Dark Lord's Downfall. This article concerns the Harry Potter: The Dark Lord's Downfall version of Phoebe Blackheart; you may be looking for other canon and fanon versions. Aiden Thomas Chamberlain (b. 31st May, 1980) was a Pureblood wizard. Born to Lucius Malfoy and Serefina Blackheart, and half-brother of Draco Malfoy and Phoebe Blackheart.