What would the ramifications had been if Prince Leopold, son of Queen Victoria and Prince Albert, had married Alice Liddell? (Alice Liddell was the basis of the character of Alice from Alice in Wonderland.)
One story has it that Alice became a romantic interest of Prince Leopold, the youngest son of Queen Victoria, but the evidence for this is sparse. It is true that Leopold's first child was called 'Alice' and that he acted as godfather to Alice's son, Leopold Reginald Hargreaves. (Leopold's most recent biographer suggests it is far more likely that Alice's sister Edith was the true recipient of Leopold's attention