The wooden Trinity church is first mentioned in the 15th century. In 1794, a stone church with the same name was built with funds from parishioners. It had two altars: in the cold part, in honor of the Holy Life-Giving Trinity, and in the warm chapel, in honor of the Kazan Mother of God icon. The church owned four stone chapels. In 1935, the church was closed by the decision of the Ivanovo Regional Executive Committee and completely dismantled.

In the village of Troitskoe, now known as Troitsko-Nikolsk, Prince Dmitry Mikhailovich Pozharsky often visited, who played a key role in saving the Fatherland during the Time of Troubles in the early 17th century. The residents of Kovrov consider him their fellow countryman, as he came from the family of the Starodub princes and was a descendant of the Vladimir-Suzdal prince Vsevolod the Big Nest.

Historians have not yet reached a consensus on the birthplace of the prince. Documents from the second half of the 16th century have survived only partially, and exact data on his birthplace will likely never be found. However, in recent decades, researchers have been able to more accurately determine the location of the Pozhar or Pogar volost, which was granted to Dmitry Pozharsky's great-great-grandfather. It is from the name Pozhar that the princes of this branch received the nickname Pozharsky, which eventually became a surname.

The ancestral lands of the Pozharskys were located in the territory of modern Kovrov District. The Pozhar began near the current southern border of Kovrov and stretched to the modern Moscow-Nizhny Novgorod highway. The oldest settlement in the Pozharsky domain and their 'capital' was the village of Troitskoe. The Pozharsky princes owned Troitskoe until 1700, and their memory was preserved there for centuries.