1, King George V of England is the son of Edward VII and the grandson of Queen Victoria.
2. The mother of Emperor William II, Queen Frederick (the princess of Queen Victoria), is the eldest daughter of Queen Victoria, so William II is her grandson, and she and George V are cousins.
Tsar Nicholas II's mother Maria Feodor Rovna is a Danish princess of Dagmar, and her sister Princess Alexandra married King Edward VII of England and gave birth to George V. Nicholas II and George V are cousins.