remain at St. Georg. 17th–18th centuries Since 1627, the cathedral underwent a major renovation under Catholicos Movses (Moses), when the dome, ceiling, roof, foundations and paving were repaired. At this time, cells for monks, a guesthouse and other structures were built around the cathedral. Additionally, a wall was built around the cathedral, making it a fort-like complex. The renovation works were interrupted by the Ottoman-Safavid War of 1635–36, during which the cathedral remained intact. The renovations resumed under Catholicos Pilippos (1632–55), who built new cells for monks and renovated the roof. During this century, belfries were added to many Armenian churches. In 1653–54, he started the construction of the belfry in the western wing of Etchmiadzin Cathedral. It was completed in 1658 by Catholicos Hakob IV Jugayetsi. Decades later, in 1682, Catholicos Yeghiazar constructed smaller bell towers with red tuff turrets on the southern, eastern, and northern wings. The renovations of Etchmiadzin continued during the 18th century. In 1720, Catholicos Astvatsatur and then, in 1777–83 Simeon I of Yerevan took actions in preserving the cathedral. In 1770, Simeon I established a publishing house near Etchmiadzin, the first in Armenia. During Simeon's reign, the monastery was completely walled and separated from the city of Vagharshapat. Catholicos Ghukas (Lucas) continued the renovations in 1784–86. Russian takeover The Russian Empire gradually penetrated Transcaucasia by the early 19th century. Persia's Erivan Khanate, in which Etchmiadzin was located, became an important target for the Russians. In June 1804, during the Russo-Persian War (1804–13), the Russian troops led by General Pavel Tsitsianov tried to take Etchmiadzin, but failed. A few days after the attempt, the Russians returned to Etchmiadzin, where they caught a different Persian force by surprise and routed them. Tsitsianov's forces entered Etchmiadzin, which, according to Auguste Bontems-Lefort, a contemporary French military envoy to Persia, they looted, seriously damaging the Armenian religious buildings. Shortly after, the Russians were forced to withdraw from the area as a result of the successful Persian defense of Erivan. According to Bontems-Lefort, the Russian behaviour at Etchmiadzin contrasted with that of the Persian king, who treated the local Christian population with respect. On 13 April 1827, during the Russo-Persian War (1826–28), Etchmiadzin was captured by the Russian General Ivan Paskevich's troops without fight and was formally annexed by Russia, with the Persian-controlled parts of Armenia, roughly corresponding to the territory of the modern Republic of Armenia (also known as