The Fors de Bearn, or fueros of Béarn, are a series of legal texts (privileges, rulings, judicial sentences, decrees, formularies) compiled over centuries (mostly the eleventh to thirteenth) in the Viscounty of Béarn. Together they formed the constitution of Béarn at the time of their first known complete version in the fifteenth century. For is a Gascon word derived from the Latin forum, specifically from the Forum Iudicium, which was the law of the Visigoths. In the first half of the thirteenth century, the viscounts and Gaston VII issued a series of fors for each of the Pyrenean valleys: