The Vladimir Cathedral in Chersonese

The Saint Vladimir Cathedral is a Neo-Byzantine Russian Orthodox cathedral on the site of Chersonesos Taurica. It commemorates the presumed place of St. Vladimir's baptism.

According to legend and historic facts the baptism of Vladimir the Great took place in 988 in the Chersonese (or, as it was called by ancient Russian, Korsun), now - Chersonesos Taurica, a National Preserve near Sevastopol. In The Story of the Passing Years by the monk Nestor the city conciliar Church was mentioned: “in the middle of the city, where the inhabitants gather to trade”, which, as supposed, could be the probable place of the event crucial for the whole Rus.

The idea to immortalize the place of the Baptism of the Holy Prince Vladimir Equal-to-the-Apostles was first represented in 1825 by the Black Sea Fleet Chief vice-admiral Alexey Greig. On his initiative the excavations under the direction of K.Kruse were conducted in Chersonesos Taurica in 1827. As a result, the remains of the ancient Christian churches, including cruciform basilica were found out at the center of the market square.In 1830th the historians Frédéric Dubois de Montpéreux and N. Murzakevich made the conjecture that Vladimir the Great was baptized in this basilica. After that, all doubts about the place of the future Church dispelled. In 1850 by the petition of prelates of the church Innocent, archbishop of Chersonese and Tauric, St. Vladimir's Cloister was found. On August 23, 1850 grand laying of the foundation stone of the Church in honor of Saint Vladimir took place.

...
Wikipedia