Elizabeth of York:
Elizabeth of York was Queen constort to King Henry VII of England, also the mother of Henry VIII and my first cousin! (21x removed)
According to Wikipedia, “she is the only English queen to have been a daughter, sister, niece and wife of English monarchs during her lifetime.”
She was born in 1466 to Edward IV and Elizabeth Woodville. She was christened in Westminster Abbey. In 1477 she was named Lady of the Garter.
Her husband, Henry VII was the heir of the Lancaster house, they had seven children: Arthur, Prince of Wales, Margaret (Queen of Scotland), Henry VIII, Elizabeth Tudor, Mary (Queen of France), Edmund, Duke of Somerset, and Katherine Tudor.
Her oldest son, Arthur, married Catherine of Aragon, the daughter of Ferdinand and Isabella; but five months after that marriage Arthur died. The grief of losing her son caused Elizabeth of York and Henry VII to try and have another child, resulting in Katherine Tudor, but unfortunately after Katherine was born, Elizabeth died of a “post-partum infection” on her birthday, February 2, 1503. She’s burried in Westminster Abbey. Henry took his wife’s death very hard and built her “Lady Chapel” at Westminster Abbey where she is burried. Henry never remarried and died in 1509. Henry is burried next to Elizabeth of York.