Which of the following is also known as “bleeder’s disease” or “royal disease”?

Haemophilia is often referred to as “bleeder's disease” because people with the disorder tend to bleed easily and frequently due to the deficiency of a clotting factor. Haemophilia was once called the “royal disease” because it affected several European monarchies, including the British royal family. Queen Victoria was a carrier of haemophilia and many of her male descendants were haemophilic.