Berlanga de Duero is a municipality located in the province of Soria, in the autonomous region of Castile and León, Spain. According to the 2017 census (conducted by the INE), the municipality has a population of 902 inhabitants.
Following the expulsion of the Jews of Spain in 1492, Berlanga appears in royal legal records involving conversos (Jews who had converted to Christianity), with cases showing some family members remaining Jewish and leaving in exile while others later returned and adopted Christianity.
Berlanga de Duero sits at above sea level in the northeastern foothills of the Ayllón mountain range. It has a continental Mediterranean climate, with long, cool wintersâÂÂdue in part to its altitude. The town is bisected by the Douro river, from which it derives part of its name, as well as the Douro's tributaries, the Escalote and Talegones.