Vem daterade Roger Bolingbroke?

Roger Bolingbroke (died 18 November 1441) was a 15th-century English cleric, astronomer, astrologer, magister and alleged necromancer. He flourished in the first half of the 15th century. He was tried, convicted and executed for treasonable witchcraft on the person of Henry VI of England.

Éléonore Cobham (vers 1400 - 7 juillet 1452), fut la maîtresse et la seconde épouse de Humphrey de Lancastre, duc de Gloucester. Accusée de sorcellerie, elle fut emprisonnée pour trahison et nécromancie en 1441.