Royal Cousins at War (2014)

Documentary about the closely related rulers of three different European empires: Georg V of Britain, Wilhelm II of Germany and Nicholas II of Russia, all of them grandchildren of Queen Victoria, whose countries fought on different sides in World War I.

Royal Cousins at War is a documentary show featuring Tamsin Greig.

Royal Cousins at War is currently streaming for free (ad-supported) on Amazon Prime Video.