Catherine de Medici (1519 to 1589). Dauphine from 1536 to 1547, when she became queen. She was married to Henri II, but he neglected her for his mistress, Diane de Poitiers. She was rumored to have poisoned the Dauphin Francois, so that she and her husband could become king and queen.
Henri II (1519 - 1559). King of France from 1547 to 1559. He married Catherine de Medici and had eight surviving children. His mistress, Diane de Poitiers, had tremendous influence on him. He died after getting a lance to the eye while jousting.
Catherine of Aragon was married to Henry VIII in 1509. "due to the English ancestry she inherited from her mother Queen Isabella I of Castile, Catherine had a stronger legitimate claim to the English throne than King Henry VII himself"