Burgo de Osma - Catedral de Santa María de la Asunción

The official name of the town (pop. ~ 5000) is El Burgo de Osma-Ciudad de Osma as it is made up of two parts.

As early as 912, the Castilian Count Gonzalo Téllez temporarily reconquered (Reconquista) the settlement and the construction of a fortification began, but already in 934 the place came under Muslim rule again, to finally fall under Castilian suzerainty at the beginning of the following century.

Between the years 1101 and 1109, Pedro de Bourges, who is now venerated under the name of San Pedro de Osma held the episcopacy. He ordered the construction of a Romanesque cathedral on the site of today's settlement. Around the middle of the 13th century, the Romanesque cathedral was demolished and replaced by a Gothic building, which was completed in Gothic style in 1361 but was altered a couple of times up to 1784

Construction of the tall tower, replacing another medieval one, began in 1739 and was completed in 1767.