The first written mention of Zashugomye is found in the watch book of Soli Galitskaya from 1613, which states: "The pogost, and on it the church of the Life-Giving Trinity with a tented roof, and another church of Nicholas the Wonderworker with a refectory, in which there are icons, books, vestments, candles, church vessels, and bells, all this worldly structure. On the same pogost is the yard of the sexton Tretyachka Nikitin and the yard of the prosvirnitsa Malanitsa. There are also 4 peasant households on the pogost, and nearby are the villages of Korobkino, Kolesnikovo, Muravyevo, Sergotskaya, Slezino. The village of Samylkovo, and the peasants there have either been beaten or scattered." The watch of Soli Galitskaya and the pogosts was conducted by deacon Kuzmin by order of Tsar Mikhail Fedorovich in 1614 to assess the damage inflicted by Polish-Lithuanian invaders. Thus, Zashugomye also suffered from their raids.

In 1622, Tsar Mikhail Fedorovich transferred the Zashugomye lands to Mikhail Shein, a voivode who led the defense of Smolensk during the war with Poland but was executed for surrendering the city. The Trinity estate was passed to Yakov Dashkov, whose son, V.Ya. Dashkov, became the Russian envoy to England. In 1770, the village of Troitskoye-Zashugomye and the surrounding villages, such as Korotkovo, Borodavitsyno, Rylovo, Kolesnikovo, belonged to Prince P.I. Meshchersky, and later passed by inheritance to Count Pyotr Alexandrovich Rumyantsev, a companion of Catherine II and a field marshal who received the surname Zadunaysky for his merits.

The administrative-religious center of the volost was the Trinity pogost in Zashugomye, named after the Church of the Trinity. The pogost housed two wooden churches, the Life-Giving Trinity and Nicholas the Wonderworker, which were repeatedly rebuilt due to decay. In 1653, two households of priests, a deacon's yard, a sexton's yard, a prosvirnitsa's yard, two households of landless peasants, 12 chet' of arable land, and 30 stacks of hay were assigned to the Trinity church. The parish also had three noble households, 140 peasant households, 128 households of landless peasants, and 9 widow households.

In 1685, the patriarch granted permission to build a stone church of the Protection of the Most Holy Theotokos with an altar of Nicholas the Wonderworker in the Trinity pogost, and in 1703 it was consecrated by the abbot of the Voskresensky Monastery of Soli Galitskaya, Cyprian. The further fate of this temple is unknown.

In 1704, a new church of the Life-Giving Trinity with an altar of the Origin of the Honorable Cross was built and consecrated. Two antimins were received by the priest of the Trinity church, Dmitry, from the patriarchal treasury.

In 1720, the service in the Trinity pogost was conducted by priests Lev Dmitriev and Matvey Dmitriev, and in 1723, priest Pyotr Dmitriev, deacons Grigory Vasilyev, Pyotr Grigoryev, sextons Ivan Dmitriev and Alexey Grigoryev, and deacons Alexey Dmitriev and Matvey Kosmin. In 1733, instead of the deceased deacon Grigory Vasilyev, his son Alexey Grigoryev was appointed.

In 1800, with the funds of landowner Ivan Ivanovich Lvov and with the help of parishioners, a new two-story stone Trinity church with a stone bell tower was built in the village of Troitskoye-Zashugomye. The church was surrounded by a brick fence, inside which were a cemetery, stone cells, and a storeroom. In the parish villages, there were nine wooden chapels.

The Trinity church had five consecrated altars: in the summer altar, in the name of the Life-Giving Trinity and the Protection of the Most Holy Theotokos; in the winter altar, in honor of the Epiphany of the Lord, the holy prophet Elijah, and the venerable Macarius of Unzha.