The parish church of Nuestra Señora de la Asunción is the most substantial monument in Tarancón, a late-Gothic foundation begun in the sixteenth century and expanded in stages over the following two hundred years. The west front is its great set-piece: a heavily ornamented Plateresque doorway crowded with saints, columns and the heraldry of the local lords.
The interior is dim and tall, with ribbed Gothic vaults, a Baroque main altar and a side chapel containing the tomb of Manuel Godoy — the eighteenth-century chief minister and royal favourite, whose family came from Tarancón. The church faces the Plaza de la Constitución and is the obvious anchor for a short walk through the old town.