The III Count of Fuensalida (1489–1537) hosted Prince Don Felipe and Doña Juana in Guadamur on July 11, 1502, who had just been appointed heir and heiress to the Crown of the Kingdom of Castile. In 1590, during the reign of Philip II, the castle serves as a secret prison of the Inquisition. The Vi Count participated in the expulsion of the Moors (1609) recruiting 126 young men and weapons in Guadamur. The IX Count was appointed by Charles II Captain General of the Kingdom of Sardinia and Captain General of Milan. In the 17th century Fuensalida County reaches its maximum expansion: 10,000 inhabitants and 40,000 ha, the second state of the kingdom of Toledo. In the Cadastre of Ensenada, which collects data at the villa from 1752, mention is made of "tithes and first fruits of which are caught in it" and go, inter alia, to the parish of Guadamur, to the coffers of the King, to the Cardinal Archbishop of Toledo, to the canons of the Cathedral of Toledo and the parishes of Santo Tomé, Santa Leocadia, San Martín, San Román, San Ginés, San Antolín, San Nicolás, La Magdalena, San Andrés, San Justo, San Vicente, the Mozarabic, Santa Eulalia and Santa Justa. The history of the county ended in 1843 just when the Government granted the noble properties of Guadamur to the neighbours of the town.