Grand Duke George Mikhailovich of Russia was is the only child of Prince Franz Wilhelm of Prussia and Maria Vladimirovna, Grand Duchess of Russia.
He was born on March 13, 1981 in Madrid, Spain into both the house of
Romanov (from Russia) and the house of Hohenzollern (from Germany and Romania).
- His Imperial and Royal Highness Grand Duke George Mikhailovich of Russia, Prince of Prussia
- Grand Duke George Mikhailovich of Russia
He was baptized on May 6, 1981 in Madrid. His godfather is Constantine II of Greece.
George was given the title Grand Duke of Russia by his maternal grandfather, Grand Duke Vladimir Kirillovich of Russia.
How is a Prince of Prussia in line for the British throne? Seems to be from his mother, Grand Duchess Maria Vladimirovna of Russia.
The connection here (I think) seems to be through Queen Victoria. Queen Victoria ruled from 1837 to 1901. I think Maria Vladimirovna might be a great-grand daughter of Queen Victoria.