Guiche is a commune in the Pyrénées-Atlantiques department in south-western France. The play Cyrano de Bergerac by Edmond Rostand f…Guiche is a commune in the Pyrénées-Atlantiques department in south-western France. The play Cyrano de Bergerac by Edmond Rostand features a character known as the Count de Guiche who depicts Antoine III de Gramont, a real-life French marshal from Guiche.