Charles de l'Aubespine, marquis de Châteauneuf

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Charles de l'Aubespine, marquis de Châteauneuf (1580-1653) was a French diplomat and government official.

The marquis de Châteauneuf was the grandson of Claude de l'Aubespine, baron de Châteauneuf. He was French ambassador in Holland (1609), in the Valtellina (1626), and in England (1629-1630).

He then served as the Keeper of the Seals (minister of justice) from 1630 to 1633. He conspired with the duchesse de Chevreuse against Richelieu (1633), and was imprisoned in the castle of Angoulême where he stayed for ten years.

Released, he conspired again against Mazarin (cabale des Importants, 1643). He was appointed again as Keeper of the Seals from 1650 to 1651.

He died in Leuville (Essonne département) in 1653.