Nikolaus Mikaelson is an Upgraded Original-Witch Hybrid. He is the son of Marcellus Mikaelson and Rebekah Mikaelson. Nikolaus has the blood of both his mother and father running through his veins which makes him more powerful than the two.
Through his father; he is the adoptive grandson of Niklaus Mikaelson, the adoptive young brother of Davina Claire-Mikaelson and Joshua Rosza as well as the adoptive uncle of Vivienne Claire-Mikaelson.
He is the grandson of Esther Mikaelson, Mikael Agnarsson, the Governor, and an unnamed slave.
He is the nephew ofFreya Mikaelsdottir,Keelin Malraux,Athina Mikaelson-Labonair,Finn Mikaelson,Sage Mikaelson,Elijah Mikaelson, Dianna Mikaelssen, Kol Mikaelson,Davina Claire-Mikaelson, andHenrik Mikaelson. He is the half-nephew ofNiklaus Mikaelson andCamille O'Connell-Mikaelson.
He is the cousin ofMatthew Mikaelson-Malraux, Eden Griffith-Malraux, Nik, Olympia Mikaelson, andVivienne Claire-Mikaelson. He is the half-cousin ofGrace O'Connell-MikaelsonandHope Mikaelson. He is also the adoptive cousin of Saga Mikaelssen through Elijah Mikaelson.
