Ayllón
Ayllón is a municipality located in the province of Segovia, Castile and León, Spain. According to the 2019 census, the municipality had a population of 1,196 inhabitants.
In 1411 a treaty, known as the Treaty of Ayllón, was signed between Portugal and Castile ending the wars of the Interregnum.
[Image:Ayllón01-agosto-04.JPG|thumb|left|260px|Plaza mayor with the medieval market.]