Łomża Cathedral was built between 1504-1525 and inaugurated in 1531. According a legend there was a church near the current cathedral already in c. 1000 AD. After the cathedral was damaged in Swedish wars it was restored to Gothic Baroque style in 1691-1692. The southern sacristy was added in 1886. Łomża Cathedral was again damaged in Second World War and rebuilt between 1952-1958.
The most precious treasure in the cathedral is a painting of the Virgin Mary dating from the 16th century and crowned by Pope John Paul II in 1991. There are also beautiful Renaissance items like two tombs of local governors from 1575 and 1611.
References:Saint-Georges de Boscherville Abbey is a former Benedictine abbey. It was founded in about 1113 by Guillaume de Tancarville on the site of an earlier establishment of secular canons and settled by monks from the Abbey of Saint-Evroul. The abbey church made of Caumont stone was erected from 1113 to 1140. The Norman builders aimed to have very well-lit naves and they did this by means of tall, large windows, initially made possible by a wooden ceiling, which prevented uplift, although this was replaced by a Gothic vault in the 13th century. The chapter room was built after the abbey church and dates from the last quarter of the 12th century.
The arrival of the Maurist monks in 1659, after the disasters of the Wars of Religion, helped to get the abbey back on a firmer spiritual, architectural and economic footing. They erected a large monastic building one wing of which fitted tightly around the chapter house (which was otherwise left as it was).