Sergiev Posad is a city, first of all, a monastery, therefore the history of the modern Sergiev Posad begins in 1345. (According to another version, in 1347-m.) With the construction of the brothers Stefan and Bartholomew hut-cells and the wooden church of the Holy Trinity on the hill Makovets. The monastery gradually grew up around these first buildings.

Bartholomew, who adopted the monastic name Sergius, introduces a dignity charter in the monastery . The difference between the new statute and the rules that existed before was that before the monk, when he came to the monastery, kept his property and lived "His economy" . Now for all monks established common rules of conduct and they are deprived of private property . In 1392, Sergius of Radonezh died, and in 1422 g . his imperishable relics were found . He was canonized, and over his tomb erected Troitsky with Bor - one of the first memorial churches in Russia . Thanks to the newly acquired relics, the importance of the monastery increased .

In the 15th century around the monastery there are villages, sloboda . In the 16th century the monastery is upset, the Uspensky Cathedral is being built, a stone wall with battle towers is being built around the monastery, which are useful during the 14-month siege of the monastery in 1608-1610 by . Polish-Lithuanian troops, who eventually had to retreat . At the end of the 17th century the monastery reaches the peak of its power of goods Thanks to the patronage and generosity of Peter I . Monastery owns several hundred villages, fisheries, salt varnies . A little later in the monastery is opened a theological seminary . At the end of the 18th century, from the adjoining lavra slobod formed the Trinity-Sergiev Posad, is conducted according to the regular plan . In the period from 1930 to 1991 . Sergiev Posad is named Zagorsk .

On Throughout its history, the monastery played an important role in the life of the country. For the blessing of Sergius Radonezhsky Dmitry Donskoy came here before the Battle of Kulikovo (1380); here they baptized Ivan, the son of Grand Prince Vasily III, the future Ivan the Terrible; in the monastery was hiding from Khovanshchina Peter I.