The cathedral began to build in 1847. The temple was dedicated August 16, 1853. The temple was built in the shape of a Latin cross. Outwardly, his style can be termed as a mixed Romanesque and Gothic. Gables and windows of the bell tower is Gothic, the double semi-circular windows, octagonal cupola - a Romanesque. Go to the cathedral were three entrances, located over the central body. Designed the cathedral was approximately 2000 believers. The temple was an icon of the Mother of God - the original of the famous Florentine painter of XVII century Carlo Dilche. The Holy Father Pius IX's Cathedral was given to a marble baptismal font. In 1935, hard times for the church. When communist rule the church was closed and the building made a Bulgarian-German club. Some of the valuables from the Cathedral of daring to keep the Church of St. Peter. At the beginning of the war the Germans returned to the Catholic community seeded Cathedral. But in 1949 the temple suffered from barbaric destruction: torn down columns, broken marble, in the middle of building a few floors. The temple is transformed into a gym. In 1991 the church was returned to believers, and from that moment the Cathedral is constantly being renovated. Currently, the Cathedral hosts concerts, exhibitions, prayer meetings. Many visitors come here to Odessa to see the local shrine and touch the monument of Christian history.