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Origin and history

The Château de la Coste, located in Grézels in the Lot, finds its origins in the 13th century as a simple den or watchtower. In 1267, an act confirmed that Bernard I. Guiscard, a veteran of the Albigois Crusade, received the seigneury of the bishop of Cahors around 1227. The site, which was called a noble house in 1286 and then a castle in 1348, was strengthened in the face of the conflicts of the Hundred Years War, passing under English suzeraineté between 1362 and 1372. The Guiscard, vassals of the kings of France and then of England, maintained a royal garrison there in 1348 under Bernard III.

In the 15th century, the castle escaped destruction despite regional looting, but the Guiscard family suffered a decline in 1526: three brothers were banished for crimes, and their property confiscated. John I of Guiscard, their remaining brother, had to sell land to finance his office as gentleman of King Francis I. His son, John II, married Sovereign of Genouillac in 1528 and received fiefs seized from the Protestants in 1567. During the Wars of Religion, the Catholic Guiscards saw their castle looted and partially destroyed in 1580 by the Huguenots, making it uninhabitable until its reconstruction in the late sixteenth century.

The post-1580 reconstruction gave the castle its present appearance: a square plan flanked by four towers (two rectangular to the west, two rounds to the east), with a body of four-level houses served by a central staircase. The mâchicoulis, cannons and Tabernacle windows date back to this period, mixing medieval defense and Renaissance comfort. In the 17th century the Guiscards served in the royal armies, but in 1773 the castle passed to the Durforts by marriage, before being seized as a national good in 1793. Sold to an industrialist in 1825, it was partially demolished in the 19th century and restored between 1960 and 1965.

Ranked Historic Monument in 1961 (registration) and then 1997 (partial classification), the castle preserves medieval remains like archeries and an early 13th century tower, collapsed before 1600. Its history reflects feudal struggles, the Hundred Years War, and religious conflicts, while illustrating the architectural evolution of the Quercy fortresses. Today, private, it bears witness to seven centuries of Occitan history, from the Albigean Crusades to the Revolution.

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