House of Glücksburg
The House of Glücksburg also held a significant interest in the succession to the throne. A more junior branch of the royal clan, they were also descendants of Frederick III through the daughter of King Frederick V of Denmark. Lastly, there was yet a more junior agnatic branch that was eligible to succeed in Schleswig-Holstein. There was Christian himself and his three older brothers, the eldest of whom, Karl, was childless, but the others had produced children, and male children at that.