Nine Kings in one photo, 1910

The 9 of them were in London for the funeral of King Edward VII.

Back row, L-R: King Haakon VII of Norway, Tsar Ferdinand I of Bulgaria, King Manuel II of Portugal, Kaiser Wilhelm II of Germany, King George I of Greece, and King Albert I of Belgium.

Front, L-R: King Alfonso XIII of Spain, King George V of the United Kingdom, and King Frederik VIII of Denmark