The Church of San Esteban de Aramil is of the Romanesque style, popular between the 10th and 13th centuries, but the church itself cannot be dated more exactly. It was first mentioned in documents from 1240 concerning a donation of goods to the monastery of Valdediós by Alvar Diaz and his wife.
There are two theories concerning its origin; one is that it is the last remaining remnant of a monastery and the other is that it is a nobleman's church, which would have served both as the chapel for the castle and the church for the neighboring town.
The church has the classic features of Romanesque architecture; it has a rectangular nave terminated at the southern end by a semicircular apse. Sculptural ornamentation of the church includes the doors, located on the western side of the church and in the apse. The west door has a semicircular arch with two semiarches and screens that rely on separate columns. These columns are formed by shafts supported on bases that have carved lilies forming the columns' capitals, which are decorated with plant motifs. The southern section is less important in addition to being smaller although it is similar in design to the western door. The decor includes protruding sculptured heads, of Norman origin, showing various imaginary animals. There is a small central window in the apse.
References:The church of the former Franciscan monastery was built probably between 1515 and 1520. It is located in the UNESCO World Heritage Site of Old Rauma. The church stands by the small stream of Raumanjoki (Rauma river).
The exact age of the Church of the Holy Cross is unknown, but it was built to serve as the monastery church of the Rauma Franciscan Friary. The monastery had been established in the early 15th century and a wooden church was built on this location around the year 1420.
The Church of the Holy Cross served the monastery until 1538, when it was abandoned for a hundred years as the Franciscan friary was disbanded in the Swedish Reformation. The church was re-established as a Lutheran church in 1640, when the nearby Church of the Holy Trinity was destroyed by fire.
The choir of the two-aisle grey granite church features medieval murals and frescoes. The white steeple of the church was built in 1816 and has served as a landmark for seafarers.