The House of Lancaster was the name of two cadet branches of the royal House of Plantagenet.The first house was created when King Henry III of England created the Earldom of Lancaster—from which the house was named—for his second son Edmund Crouchback in 1267. But the history of the family and of the title goes back to the reign of Henry III, who created his second son Edmund, Earl of Lancaster in 1267. HOUSE OF LANCASTER The name House of Lancaster is commonly used to designate the line of English kings immediately descended from John of Gaunt, the fourth son of Edward III. House of Lancaster, a cadet branch of the house of Plantagenet. In the 15th century it provided three kings of England—Henry IV, Henry V, and Henry VI—and, defeated by the house of York, passed on its claims to the Tudor dynasty. The House of Lancaster, a branch of the Plantagenet family, descended from John of Gaunt, Duke of Lancaster, the third surviving son of King Edward III, produced 3 Kings of England- Henry IV (1367 -1413), Henry V (1386 - 1422) and Henry VI (1421 - 1471). The family name first appeared in 1267, when the title of earl of