Aedan Mikaelson was the youngest son of the Mikaelson family and a member of the Original Vampire family in the Return of Royalty series, although he didn't share the same mother as his siblings he did share the same father with all his siblings except Niklaus Mikaelson, Aedan seems to be the most tolerating out of the younger siblings and seems to not care much for either the Volturi or the Cullens but unlike some of his family members he doesn't judge people during their first meetings.