[2] As such, Christoph was the agnatic head of the family that today includes Harald V of Norway and, patrilineally,[3] Charles III of the United Kingdom.

His great-great-grandfather, Friedrich, Duke of Schleswig-Holstein-Sonderburg-Glücksburg, was the older brother of Christian IX of Denmark, and through him Christoph is heir by male primogeniture to the Danish title Duke of [Schleswig-Holstein-Sonderburg-]Glücksburg (heir of the last extant ducal branch of the House of Schleswig-Holstein-Sonderburg) conferred by the Danish crown in 1825.

While possession of the united duchies of Schleswig and Holstein had been allocated by a series of wars and treaties since the First Schleswig War of 1848 and the London Protocol of 1852, the ducal title was borne by Christoph's father and paternal grandfather (as inherited from his great-grandfather, Friedrich Ferdinand, Duke of Schleswig-Holstein-Sonderburg-Glücksburg in 1934).

However, Christoph was known also by the title which is shared by male cadets of the dynasty, "Prinz zu (Prince of) Schleswig-Holstein-Sonderburg-Glücksburg".

28 July 1957 in Munich), younger daughter of Prince Alfred Karl Friedrich Georg Franz of Lippe-Weissenfeld (b.