Holy Trinity monastery was founded in 1996. He appeared in the village of Senno is no accident. In the 17th century in Senno was a large graveyard. In the 16th century there was built a church Florus and Laurus, which belonged to the graveyard Kolbetskomu. That's the name of this church and was named the graveyard - Sennovskaya Florovsky. In the 17th century here, from Tikhvin, ravaged Novgorod and Swedes moved Zemstvo hut (local administration). Flora and Lavra church survived several fires: in 1653 and 1771 respectively. And each time she recovered. The existing church Florus and Laurus was built in 1881-1883 years. After the consecration of the church was laid in the temple of the Holy Trinity.

Church of the Holy Trinity was built in 1888-1898 years. The church was consecrated in 1898 on the day of the coronation of Nicholas II. John of Kronstadt was one of the contributors to this temple. In the coming ten villages were Senno, when it existed temperance society Seraphim of Sarov and parochial school.

In 30-ies of XX century, churches were closed in Senno. The last abbot there was Vasily chandelier, which is now glorified in a face sacred martyrs. In 1937, he was arrested along with the other priests of Tikhvin. After one interrogation he was shot. Churches would explode to extract bauxite here. In the stone Trinity church was opened shop, and in the church Florus and Laurus organized club. They survived the war, and survived.

In the early 1990s, the local administration gave churches Tikhvin Monastery. Abbot of the monastery, Father Alexander, ordered to organize in Senno female monastery. The hermitage was constructed in the valley below the house new martyr Basil Kandelyabrova. He topped the Holy Trinity monastery nun Tabitha. The nun settled in the Holy Trinity church. The activity she began to restore the temples - Flora and Laurus and the Holy Trinity. By 1998, we renovated Trinity Church, in 2001-2002 - the church of Florus and Laurus.

Entrance to the church of the Holy Trinity is now decorated with a mosaic icon of the temple inside the temple - the set of relics, among them the true chandelier-Horos. It also kept mitten John of Kronstadt, slippers, which was consecrated on the Relics of St. Saint Spyridon, shrines and other souvenirs brought back from a pilgrimage, or donated to the temple. Worship began in 1998 has not been fully renovated Holy Trinity Church. Over time, the temple took its present form, the individual revered icons were donated to the temple, chandeliers were made to the pre-revolutionary drawings again. Near the entrance to the temple established cross in memory of those buried here behind the temple - set cross on the grave of his father Siveriana who served there until 1933.

In 2005-2006, a new log cabin was built the church - Beheading of John the Baptist. Well under the altar of the church is paved with bricks, which were brought from the destroyed churches, from the Holy Land, a Baptist from Valaam monastery. In 2005, the renewed liturgy in the wooden church of Florus and Laurus after installing the cupola with a cross and of decoration.

In the temples of the monastery are the relics of particles - Barbara and Elizabeth martyrs, saints and martyrs Theodosius of Chernigov George, Reverend Lawrence Chernigov, Aristokl Athos Unzhensky and Macarius, St. Philip Irapskogo.

Now Holy Trinity monastery three temples, a refectory, a pool, a sister body, house, hotel, apiary, garden. Opposite the monastery chapel in the village arranged martyrs and confessors of the Russian, and at the entrance of Boksitogorsk staged roadside George.

In connection with the opening of the Tikhvin Vvedensky convent of Holy Trinity monastery in the village of Senno attributed to him. Now worship in the churches of the monastery perform on Saturdays and holidays feast.

Next to the hermitage there are two sources: one is named in honor of St. Nicholas, the other - in honor of St. Sergius of Radonezh. Directly above them before the home of Basil Kandelyabrova. The Trinity Church is its icon. In the monastery there is evidence of the help of the new martyr suffering. On the site of his house installed a memorial cross. On the way to the sources have survived apple trees, gooseberries, currants from the garden of the former priest. Spring water has healing properties and helps to cure the sick and the afflicted.