Complex sentence: The château was founded in 1810 by winebroker Pierre Urbain Pédesclaux, who operated it with his wife until 1891, when the estate was sold to the Count de Gastebois.
Split into simpler sentences: The château was founded in 1810 by winebroker Pierre Urbain Pédesclaux. After his death his widow continued to operated until 1891, when the estate was sold to the Count de Gastebois.