This site claims that:
Serious crimes, such as murder, rape, or impersonating an Egyptian were given the death sentence in England.
Is that true?
In England a law of 1713 outlawed
all Persons pretending to be Gipsies, or Wandering in the Habit or Form of Counterfeit Egyptians, or pretending to have Skill in Physiognomy, Palmestry, or the like Crafty Science, or pretending to tell Fortunes or like Phantastical Imaginations, or using any Subtle Craft, or Unlawful Games or Plays
Source: The Gypsies, by Angus M. Frasier, 1995: Blackwell Publishing. Page 136. Amazon Link
It was not a capital offense.