Ss. Boris and Gleb Cathedral, Daugavpils

The Saints Boris and Gleb Cathedral (Russian: Борисоглебский собор,[n 1] Latvian: Svēto Borisa un Gļeba pareizticīgo katedrāle) is the main Orthodox church in Daugavpils, Latvia.

A previous church on the site was built in 1866[3] by the order of the Governor-General of the Northwestern Krai Konstantin von Kaufman for the needs of the local garrison and was consecrated in honour of the emperor Constantine I and his mother Helena.

Usually referred to as the Iron church (Железная церковь, Dzelzs baznīca) because of its external cladding, it was dismantled and rebuilt at Tsargrad (now Jersika), where it still remains, following the decision to build a new garrison cathedral at the original site.

12 July] 1905 in honour of the Holy Righteous Princes and Passion-bearers Boris and Gleb and Saint Alexius, Metropolitan of Moscow.

It is a three-aisled masonry church, which on the plan forms an oblong rectangular with a polygonal apse and resembles a ship.