Catherine de Valois. The mother of the Tudor dynasty. Wife of Henry V and Owen Tudor. With her second husband Owen Tudor she bore a son Edmund who married Margaret Beaufort who would then produce a new king for England King Henry VII. The first of the Tudors
Isabella of France (9 November 1389 – 13 September 1409) was Queen consort of England as the second spouse of King Richard II. Her parents were King Charles VI of France and Isabeau of Bavaria. Isabella's younger sister, Catherine of Valois, was Queen consort of England from 1420–1422, as the wife of King Henry V of England and mother of Henry VI, King of England.
Isabeau of Bavaria (aka "Isabella"), seen on the right, was the mother of Catherine of Valois, grandmother to Henry VI and Edmund Tudor, great grandmother to Henry VII, and great-great grandmother to Henry VIII. She was married to Charles VI ("The Mad") of France.
Charles VI, the Beloved, the Mad (1368 - 1422). King of France from 1380 to 1422. He married Isabeau of Bavaria and had eight children. He was very popular, but his insanity allowed the English to invade France. He was forced to disinherit his sons and leave to the throne to the English King, Henry V, who married his daughter Katherine.