Poseritz Brick church is built on foundations of large fieldstones. There are individual fieldstone courses in the tower. Work on the nave began between 1302 and 1325. The structure was designed as a three aisle hall structure, and this plan was followed in the first phase of construction, visible in the applied columns to the left and right of the tower entrance. Those to the east were removed in widening the triumphal arch, when a broader choir than originally planned was added, which required cuts into the east wall of the nave. The outer walls originate from the three aisle hall church. But in the second phase of construction the church was finally erected in the form of a triple-bay hall with buttresses. The choir, nave, and sacristy have cross vaulting, applied columns supported outside by abutment piers. Choir with rectangular termination built shortly afterwards in the 14th century. The sacristy was added afterwards in about 1400 to the north between the choir and the east wall of the nave. Massive west tower dating from later than 1450 using existing denticulation, a polygonal spire being added in 1580. The west portal with its segmental arch has an old, nailed diamond pattern door. The interior is plastered in white.
Oldest furnishings and accessories are the 14th century limestone font and Gothic crucifix over the south portal from about 1400. Other furnishings include offertory box from the 15th century, bell from about 1500, large triumphal cross ensemble with 16th century cross, Mary and John from the 15th century, two wooden patron chairs from 1598 and 1600, memorial tablet from 1600, late Baroque carved altar from 1703, confessional from 1747 and Rococo pulpit by Jakob Freese, Stralsund, from 1755.References:
The Château d'Olhain is probably the most famous castle of the Artois region. It is located in the middle of a lake which reflects its picturesque towers and curtain walls. It was also a major stronghold for the Artois in medieval times and testimony to the power of the Olhain family, first mentioned from the 12th century.
The existence of the castle was known early in the 13th century, but the present construction is largely the work of Jean de Nielles, who married Marie d’Olhain at the end of the 15th century.
The marriage of Alix Nielles to Jean de Berghes, Grand Veneur de France (master of hounds) to the King, meant the castle passed to this family, who kept it for more than 450 years. Once confiscated by Charles Quint, it suffered during the wars that ravaged the Artois. Besieged in 1641 by the French, it was partly demolished by the Spaniards in 1654, and finally blown-up and taken by the Dutch in 1710. Restored in 1830, it was abandoned after 1870, and sold by the last Prince of Berghes in 1900. There is also evidence that one of the castles occupants was related to Charles de Batz-Castelmore d'Artagnan, the person Alexandre Dumas based his Three Musketeers charictor d'Artagnan on.
During the World War I and World War II, the castle was requisitioned first by French troops, then Canadian and British soldiers. The current owner has restored the castle to its former glory.