The classicist tomb monument of the Śniadeckis in Horodniki underwent conservation work in 2012. They were carried out by a team composed of Janusz Smaza, PhD, Kazimierz Patejuk and Witold Butkiewicz.

The monument, made of white Carrara marble, is topped with an urn decorated with laurel leaves and emblems of a chemist and a medic. The family coat of arms, the Leliwa, is placed on one of the walls. The monument was erected in 1839; it was founded by Jędrzej Śniadecki himself, who wished to commemorate his deceased parents. The monument was erected near the 19th century wooden chapel, in the crypt of which the coffins of the deceased members of the Śniadecki family are kept.

The Horodniki cemetery and chapel now belong to St Michael the Archangel parish in Oshmia. Jędrzej's tombstone was subjected to conservation work at the request of the "Dzieje" Association from Murowana Goślina and the request of the parish priest of Oszmiany, Father Jan Puzyna. The local authorities and the school management in Kolčėnai responded favourably to this undertaking. The conservation was carried out with funds from the Ministry of Culture and National Heritage.

Jędrzej Śniadecki, known as the father of Polish chemistry, was born on 30 November 1768 in the Wielkopolska town of Żnin. He was the brother of Jan (1756-1830), who became famous as a mathematician and astronomer, one of the most eminent scientists of the Enlightenment era, associated with the universities of Krakow and Vilnius. Jędrzej Śniadecki became known as an eminent chemist, biologist, publicist and physician, lecturer at Vilnius University and the Medical and Surgical Academy in Vilnius. His medical practice and the associated income allowed him to buy landed estates - Bołtupia, Rivnopol and Wielobuty. He died on 29 April (12 May) 1838, and was buried at the cemetery in the village of Horodniki near Boltupia (now Belarus) next to his wife Konstancja of Mikulovskis, who had died eight years earlier. Outside the town, students built a mound with a cross for their lecturer, called Jędrzejówka.

Śniadecki was the father of Ludwika - Juliusz Słowacki's youthful love and later wife of Michał Czajkowski (Sadyk-Paszy), as well as of Zofia - the wife of Michał Baliński, owner of a palace in Jaszuny (now Lithuania), not far from the Bołtup estate. Śniadecki was a frequent guest there. In 1824, Jędrzej's brother, Jan Śniadecki, a retired rector of Vilnius University, decided to live in his niece's estate. He died in 1830 and is buried in the family cemetery of the Baliński and Śniadecki families in Jaszuny.