求翻译：自Lancaster与York 的玫瑰战争 (1455-1485)起，玫瑰即成为英格兰的象征。当时代表Lancaster皇室的是红玫瑰，代表York皇室的是白玫瑰。约克郡人 (Yorkist)的政权于1485年8月22日李察三世被亨利七世在Bosworth击败后瓦解。最后以亨利七世与伊丽莎白通婚收场，为了纪念英格兰以玫瑰为国花，并把皇室徽章改为红白玫瑰。是什么意思？

Lancaster and York since the Wars of the Roses (1455-1485), the rose is a symbol of England. At that time the royal family on behalf of Lancaster a red rose, representing the Royal York is the White Rose. Yorkshire people (Yorkist) regime on August 22, 1485 Richard III was defeated by Henry VII at B

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The Wars of the Roses from Lancaster and York (1455-1485), rose is the symbol of England. Representative is the Red Rose of Lancaster Royal, on behalf of York is the White Rose of the Royal family. Yorkshire people (Yorkist) regime on August 22, 1485 lichasanshi was Henry VII after Bosworth beat bre

Lancaster and York since the Wars of the Roses (1455-1485), the rose is a symbol of England. At that time the royal family on behalf of Lancaster a red rose, representing the Royal York is the White Rose. Yorkshire people (Yorkist) regime on August 22, 1485 Richard III was defeated by Henry VII at B