Cecily Neville, Duchess of York

Cecily Neville (3 May 1415 – 31 May 1495) was an English noblewoman, the wife of Richard, Duke of York (1411–1460), and the mother of two Kings of England—Edward IV and Richard III. She was born at Raby Castle in Durham, and was known for her piety. Although she has been long known as "The Rose of Raby", this sobriquet has no historical basis, since its first mention is found in a late 18th century novel by Agnes Musgrave. She herself signed her name "Cecylle".

Cecily's husband, the Duke of York, was the leading contender for the throne of England from the House of York during the period of the Wars of the Roses until his death in 1460. Their son Edward actually assumed the throne as Edward IV in 1461, after the deposition of King Henry VI of the House of Lancaster. The Duchess of York thus narrowly missed becoming queen consort of England. Through Edward's daughter, Elizabeth of York, Cecily was the great-grandmother of Henry VIII and an ancestor of all subsequent English and British monarchs.

Source: Wikipedia — https://en.wikipedia.org/wiki/Cecily_Neville,_Duchess_of_York