Cathedral Basilica of the Assumption, Lviv

The Archcathedral Basilica of the Assumption of the Blessed Virgin Mary (Ukrainian: Архикатедральна Базиліка Пресвятої Діви Марії; Polish: Bazylika Archikateldralna Najświętszej Maryi Panny), usually called simply the Latin Cathedral (Ukrainian: Лати́нський собо́р, Polish: Katedra Łacińska) is a 14th-century Latin Catholic cathedral in Lviv, western Ukraine.

In 1360, king Casimir III of Poland began the construction of the present-day church, built in Gothic style, as the cathedral of the newly created Latin diocese.

In 1440 the Metropolitan of Kiev, Cardinal Isidore celebrated Holy Mass for the intention of Christian Unity, when he stopped off in Lwów on his way back from the Council of Florence.

It was visited by several Polish kings, most notably by John II Casimir, who entrusted the Polish–Lithuanian Commonwealth to the care of the Blessed Virgin in what came to known as the Lwów Oath.

Following the Soviet annexation of almost half of Poland's pre-war territory the Latin Cathedral is presently one of just two churches in Lviv that were not closed down or made subject to the Muscovite Patriarchate during Soviet rule, the other being the Latin Catholic church of St. Anthony in Lychakiv, while the deported bishops of the See of Lwów resided in Lubaczów, a town in present-day southeastern Poland, close to the border with what is now Ukraine.

The church circa 1840
Coat of arms of Lviv
Coat of arms of Lviv