Question: How long did the War of the Roses last where Henry Beaufort was an important Lancastrian military commander?
Sentence (from "Wars of the Roses"): The Wars of the Roses were a series of wars for control of the throne of England fought between supporters of two rival branches of the royal House of Plantagenet: the House of Lancaster (associated with a red rose), and the House of York (whose symbol was a white rose).
Relevant evidence: Yes