The Saint Sofia Church (Bulgarian: църква „Света София“, tsyrkva „Sveta Sofia“) is the oldest church in the Bulgarian capital Sofia, dating to the 4th century. In the predecessor building took place the Council of Serdica held most probably in 343 and attended by 316 bishops. In the 14th century, the church gave its name to the city, previously known as Sredets (Средец).
Source: Wikipedia
