Question: Who was the mother of the man who was King of England from 1483 to 1485?

Related documents: [0]  [DOC] Richard III (2 October 1452 – 22 August 1485) was King of England from 1483 until his death in 1485, at the age of 32, in the Battle of Bosworth Field. He was the last king of the House of York and the last of the Plantagenet dynasty. His defeat at Bosworth Field, the last decisive battle of the Wars of the Roses, marked the end of the Middle Ages in England. He is the subject of the historical play "Richard III" by William Shakespeare. [END] 
[1]  [DOC] Raby Castle (grid reference [ NZ12912177] ) is near Staindrop in County Durham, England, among 200 acre of deer park. It was built by John Neville, 3rd Baron Neville de Raby, between approximately 1367 and 1390. Cecily Neville, the mother of the Kings Edward IV and Richard III, was born here. After Charles Neville, 6th Earl of Westmorland, led the failed Rising of the North in favour of Mary, Queen of Scots in 1569 Raby Castle was taken into royal custody. [END]  
Answer: Cecily Neville
Cecily Neville