The haemophillia came from Queen Victoria
The obviously didn't have it herself but she was a carrier. It's unknown if any previous member of her family had it.
She had nine children - five daughters and four sons. At least one son was a haemophiliac. The second oldest daughter, Princess Alice was mother to Alix, the last Tsarina of Russia whose son Alexei was haemophilliac.
Victoria is called "The Grandmother of Europe" because eight of her nine children married other European royalty who happily continued to marry relatives both close and distant, in the name of keeping it in the family. This is the origin of haemophillia in Europe's royal houses.
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