Iglesia de la Trinidad

Iglesia de la Trinidad is a 16th-century church, now standing in ruins on the edge of old Canfranc (Canfranc-pueblo), a small village in the La Jacetania district of Huesca province, at the gateway to the Aragonese Pyrenees. Also recorded under its full name, Iglesia de la Santísima Trinidad, the building sits at the exit of the village toward Jaca and appears in regional fortification listings as a fortified church.

Who built the church, and why?

The story begins in the mid-16th century, when Blasco de Les, a wealthy merchant born in Canfranc, funded a religious and charitable foundation at his own expense. Besides the church itself, his plan included a hospital for the poor and for pilgrims, plus housing for eight ecclesiastical beneficiaries. Construction dragged on for years — work was still underway in 1556, and the church remained unfinished when Blasco de Les died in 1575. Pope Pius V formally approved the foundation through a papal brief issued on 10 January 1571.

What does the building look like?

The church blends late Gothic forms with Renaissance details, a transitional style typical of the Aragonese Pyrenees in that period. It follows a rectangular plan measuring roughly 15.9 by 8 metres, with a single nave and a narrower, square-shaped chancel. A bell tower rises on the east side, while the south façade still shows a Renaissance doorway decorated with pilasters and ornamental motifs. Inside, the church once held elaborate altarpieces and an organ, and beneath the tower sat a burial chapel for the founder's family, marked by an elaborate recumbent tomb carved in 1610.

How did it end up abandoned?

After roughly a century of activity, the foundation went into decline, and its clerical chapter shrank to just a president and two beneficiaries. The institution was dissolved in the early 19th century, leaving the building empty. By 1845 it had been converted into a barracks, housing around thirty soldiers. In 1944 the church lost its roof and fell into the ruin still visible today — the same year a major landslide struck old Canfranc, destroying much of the village and forcing residents to rebuild the settlement on a new site nearby.

What can visitors see today?

The church no longer has a roof, but the chancel still preserves vault springers and moulded ribs, along with a now-blocked Gothic tracery window. The Renaissance portal on the south side remains intact. Between 2001 and 2004, the regional government of Aragón carried out conservation work that stabilised the ruin without restoring it to active use.

Frequently Asked Questions

Where exactly is Iglesia de la Trinidad? At the exit of old Canfranc (Canfranc-pueblo), on the road toward Jaca, in the La Jacetania district of Huesca province.

Can visitors go inside? The building is a roofless ruin, so it is seen from the outside and through the open shell of the former nave and chancel.

Why is it also called Santísima Trinidad? That is the church's full original dedication; both the short and long forms are used interchangeably in local and regional sources.

Is this the only historic site in old Canfranc? No — old Canfranc is a small village whose history is also marked by the 1944 landslide, so a visit pairs well with exploring the rest of the village and the surrounding Pyrenees.