The church of San Juan was constructed in 1515 in place of a Mudéjar edifice. At this time, Albacete belonged to the Diocese of Cartagena. In the 16th century the previous Gothic vaults were demolished and replaced with the current Baroque ones. In 1936, during the Spanish Civil War its bells were melted down only to be replaced in 1947 by its current bells. It was also during this post war period, in 1949 when the principal facade was finished and the Diocese of Albacete was formed, elevating the church to cathedral status. In 1960 the lateral facade was finished in a Romanesque Revival style.
References
^"Historia". Diocese of Albacete. Retrieved 2022-09-23.