Charles I with M. de St Antoine

Charles I with M. de St Antoine is an oil painting on canvas by the Flemish painter Anthony van Dyck, depicting Charles I on horseback, accompanied by his riding master, Pierre Antoine Bourdon, Seigneur de St Antoine.

Charles I became King of England, Scotland and Ireland in 1625 on the death of his father James I, and van Dyck became Charles's Principal Painter in Ordinary in 1632. This portrait is dated 1633 and was the first equestrian portrait of Charles I painted by van Dyck.

The prime version is in the Royal Collection and hangs in the East Gallery at Buckingham Palace.