Iglesia Mayor de San Pedro y San Pablo is located in the center of San Fernando, opposite the Church Square. Construction of the church began in 1756, replacing the small parish church of Santa María del Castillo de San Romualdo. It was consecrated in 1764 but was not completed until the early 19th century. Its primitive design is attributed to Alejandro Perdia although Torcuato Benjumeda is credited with its final appearance. It was built to satisfy the needs of San Fernando's growing population. Financing for its construction was raised by a tax on wine. Legend states, however, that an Englishman saw the unfinished state of the church and donated a large sum of money in spite of belonging to the Anglican Church himself. Its historical value is important, as it was here that deputies of the first Spanish Constituent Assembly were sworn in on September 24, 1810. A series of small offices within the building were historically used as meeting places for some guilds.
Two architectural styles predominate the rectangular building: Late Baroque, especially the ornamental decorations around the various doors, and Neoclassicism in the upper sections of the towers topping the facade. Four bells which bear the names of the four Evangelists are situated in its two towers. The facade includes a flat bay with slightly arched lintel. The central nave is flanked by two aisles and there is a transept and a vestry which is at a slightly higher level than the rest of the church. The floor is of marble and there is an oyster stone plinth. The sacristy is behind the chancel. A hemispherical dome crowns the transept with ribbed vaults at the same height as the roof of the nave. Tuscan pillars supporting curved arches separate the aisles from the central nave.
During restoration work in 1959, the main altar was adorned with paintings of Christ crucified with St Peter and St Paul on either side. The baptismal chapel in the first section of the nave is decorated with murals of the four Evangelists, dating to 1959. Other paintings in the church include Nuestra Señora del Rosario and San Miguel. Other various works of art include Holy Week processions in the city. The crypt, known as the cellar, contains the tombs of monks.
References:Carlsten is a stone fortress built on the orders of King Carl X of Sweden following the Treaty of Roskilde, 1658 to protect the newly acquired province of Bohuslän from hostile attacks. The site of Marstrand was chosen because of its location and its access to an ice free port. Initially a square stone tower was constructed, but by 1680 it was reconstructed and replaced by a round shaped tower. Successive additions to the fortress were carried out, by the inmates sentenced to hard labour, until 1860 when it was reported finished. The fortress was decommissioned as a permanent defense installation in 1882, but remained in military use until the early 1990s.
The fortress was attacked and sieged twice falling into enemy hands. In 1677 it was conquered by Ulrik Frederick Gyldenløve, the Danish military commander in Norway and in 1719 by the Norwegian Vice-Admiral Tordenskjold. At both occasions the fortress was returned to Swedish control through negotiations and treaties.