En el Archivo de la Fundación Casa Ducal de Medinaceli se conserva una interesante serie de planos
sobre la Colegiata de Santa María de la Asunción de la villa de Medinaceli (Soria), principalmente
alusivos a reformas estructurales del edificio ‒particularmente de la torre y de algunas de sus capillas‒,
junto con diseños alusivos a algunos aspectos de su ornamentación. Los duques de Medinaceli,
señores del lugar, costearon la fábrica del templo y fueron patronos de la institución colegial. Esta
planimetría del inmueble conservada por sus patronos nos ha servido para profundizar en un edificio
religioso, bastante desconocido, que tuvo una importancia capital en la villa ducal de Medinaceli y en
todo el obispado de Sigüenza entre los siglos xvi y xix.
The archives of the Ducal House of Medinaceli Foundation hold an interesting series of plans of the
Collegiate of Santa María de la Asunción in Medinaceli (province of Soria, Spain). These plans mainly
pertain to structural reforms of the building, particularly of the tower and some of its chapels, but also
contain designs for some aspects of the church’s ornamentation. Construction of the temple was paid
for by the local nobility, the Dukes of Medinaceli, who were patrons of this collegiate institution, and
as such preserved the planimetry of the building. This archived planimetry allows a deeper historical
analysis of this heretofore largely unknown religious building, which was of capital importance to the ducal town of Medinaceli as well as the wider bishopric of Sigüenza between the 16th and 19th
centuries.