Chapel-burial vault of Svyatopolk-Mirsky family (Russian: Часо́вня-усыпа́льница Святопо́лк-Ми́рских), also known as Spasskaya Chapel,Лавришевский монастырь Мир. Официальный сайт Синодального паломнического отдела Белорусской Православной Церкви. 10 February 2016. is an architectural monument located in the urban settlement of Mir, Karelichy District, Grodno Region, Belarus, and situated near the Mir Castle within the English-style park, established at the end of the 19th to the beginning of the 20th century.

The chapel-tomb was constructed between 1904 and 1910 based on a design by architect , funded by Cleopatra Svyatopolk-Mirskaya. It was consecrated in honor of Nicholas the Wonderworker. Over the years, six members of the Svyatopolk-Mirsky family were buried in its crypt. During the period of the Second Polish Republic, thanks to the efforts of Prince Mikhail Svyatopolk-Mirsky, rare coniferous trees and roses were planted around the building. Under Soviet rule, the church's property was looted, with some items transferred to a nearby church. Post-war, the chapel served as a grain storage for a distillery. It fell into disrepair until restoration work began in 2004, completed by December 1, 2008, when the chapel reopened to visitors. In 2014, the first services were held: a memorial service and a Divine Liturgy.

Most researchers classify the chapel-tomb as Art Nouveau. Its dynamically asymmetrical composition was innovative for its time. The structure comprises a narthex, chapel hall, apse, and the dominant feature — a tall bell tower. The tomb is both plastically and coloristically rich. Notable elements include the Svyatopolk-Mirsky family cartouche and a large mosaic panel depicting Christ Pantocrator. The latter dominates the chapel's appearance. Internally, the building has two levels: a crypt and a hall for services. The chapel also serves as a minor architectural feature within Mirsky Park.

The Svyatopolk-Mirsky Chapel-Tomb is part of the Mir Castle and Park Complex, which was added to the UNESCO World Heritage List in 2000. The mosaic panel is separately listed in the State List of Historical and Cultural Values of the Republic of Belarus.

History The chapel-tomb was designed by St. Petersburg architect Robert Marfeld, who never visited Mir. A sketch dated 1901 was published in 1902 by Gavriil Baranovsky in his Architectural Encyclopedia of the Second Half of the 19th Century. On August 24, 1902, the project was approved by the Construction Department of the Minsk Governorate Administration. Some researchers suggest Marfeld, demonstrating boldness as a composer and stylist, aimed to echo the medieval Mir Castle through upward aspiration, Gothic brickwork, red brick color, and the texture and color of the stone used for the plinth. Art historians propose that the overarching goal was to create an "intra-family symbol of noble origin and aristocracy" for the patrons, resulting in a chapel that reached the scale of a small church.

Construction was funded by Princess Cleopatra Mikhailovna Svyatopolk-Mirskaya.I. Iodkovsky believes that the chapel was built by Prince N. Sviatopolk-Mirsky. See: Iodkovsky I. Castle in Mir // Antiquities. Proceedings of the Commission for the Preservation of Ancient Monuments. М., 1915. V. 6. P. LXX. Building began in 1904.Some sources mention only 1901 (Kalnin V. V. Mir Castle. Minsk: Polymya, 1986. P. 32.) or 1904 (Kulagin A. M. Kulagin. M. Orthodox churches of Belarus: an encyclopedic guide. Minsk: BelEn, 2007. P. 279. ; Kulagin A. M. Mirskaya kapl. М. Some argue construction was completed in 1911. However, researchers O. Novitskaya and L. Prokopenko, based on 1910 clerical records mentioning the "church-crypt of the Svyatopolk-Mirsky princes in the Zamirye estate", assert completion in 1910. The 1909 clerical records of Mir's Nicholas Church lack chapel references. Documents from the Holy Trinity Church archive confirm the chapel was dedicated to Saint Nicholas. This is corroborated by the 1942 Clerical Record of the Novogrudok and Baranovichi Diocese, Holy Trinity Church, Mir. The choice of saint may relate to its construction in memory of Cleopatra's husband, Nikolai Svyatopolk-Mirsky. Local residents had no access to the chapel.

In February 1910, Princess Cleopatra Svyatopolk-Mirskaya was buried in the chapel, followed by her granddaughter, Sonya Svyatopolk-Mirskaya, on May 3, 1913, who drowned in Bulgaria. Burial details are preserved in the 1899–1914 Liturgical Diary from the National Historical Archives of Belarus. The memorial service was led by priest I. Khlebtsevich and deacon Zantsevich, followed by a procession from Zamirye station to Mir and burial services in the crypt, attended by archpriest F. Stsepuro and Khlebtsevich. The reburial date of Prince Nikolai Svyatopolk-Mirsky remains unknown.

One account suggests that after Mir's incorporation into Poland in 1921, the chapel became Catholic and was used as a church. However, there are memories that indicate a procession where, on Good Friday morning, the epitaphios was carried from the church to the chapel, locally called the Princely Church, and retrieved Saturday evening. Other local memories suggest no services occurred except for bread consecration on Trinity Sunday. In the 1920s–1930s, there were at least three bells. The doors were oak with carved crosses. Prince Mikhail Svyatopolk-Mirsky maintained the chapel.

In 1922, Ivan Svyatopolk-Mirsky was buried in the chapel. In 1938, Prince Mikhail, who converted to Catholicism in the 1930s,At the same time, according to other sources, he remained Orthodox, and after the funeral service organized in the church by the priest, the funeral in the crypt was conducted by an Orthodox priest. See: Ramanava I., Mahoŭskaia I. Mir: History of the Mestechek: what his friends told. Vilnia: YSU, 2009. P. 63. ; Hadasevich G. Mikalai Pyatrovich Tsaruk - manager of the Zamir'e municipality in the first third of the 20th century // Minsk Zamak. Restoration Concepts and Problems of Museum Fiction: Research Conference, 16 March 2007, Mir Hrodna region / Ed. by A. Karpenka. A. U. Karpenka. Minsk: TAA “Bel- pint”, 2008. P. 163. was buried after a funeral in the Nicholas Church, with his coffin transported along Nesvizh Street to the chapel. Only select attendees entered the crypt, where he was buried to the right of the entrance. The identity of the sixth burial is uncertain, with possibilities including Prince Vladimir Nikolaevich Svyatopolk-Mirsky (died in Egypt in 1906), grandson Nikolai Semenovich Svyatopolk-Mirsky, or one of Prince Mikhail's aunts.

Some sources claim church property was looted in 1939, while Holy Trinity Church archives indicate authorities removed all church items in 1940. Remaining items were transferred to Saint George Church in Mir's Orthodox cemetery. On August 14, 1948, a Mir District Executive Committee decree repurposed the chapel as a grain storage for a distillery. It served this purpose for about 20 years. The crypt stored peat and coal. In October 1978, the Council of Ministers of the Belarusian SSR issued a decree for the restoration of Mir Castle and the construction of an art vocational school in Mir, including plans for the comprehensive restoration of the Mir Castle and Park Complex, encompassing the chapel.

In 1993, the chapel was still inactive. In 2000, it was included in the UNESCO World Heritage List as part of the "Mir Castle Complex". Restoration began in 2004 and continued for four years. By 2007, restorers noted the need for further studies. Priorities included restoring the interior using surviving items: the iconostasis in Beryozovka church, a chandelier in Mir's Trinity Church, and photos of the northern and southern facades showing icons of Saint Nicholas and Our Lady of Tenderness (possibly Vladimirskaya). On April 27, 2007, a bell inscribed with "Lord, remember the souls of your departed servants of the Svyatopolk-Mirsky family" was raised to the bell tower after consecration. On March 10, 2008, Belarus's Minister of Culture, Vladimir Matveychuk, approved a scientific concept for the restoration and museification of the Mir Castle Complex, designating the 200 m2 chapel as part of the museum-exhibition zone. Three mosaics were created for the main and side facades: Saint Nicholas, Our Lady of the Don, and Iviron Theotokos. Artists Viktor Barabantsev, Denis Chubukov, and Anatoly Chugunkin crafted them. Initially, a temporary exhibition, "Svyatopolk-Mirsky Chapel-Tomb: Patrons and Builders. History of Construction and Restoration," was planned for the crypt. In 2008, plans were made to display icons from the National Art Museum of Belarus in 2009. Monitoring of the heating system was planned to prevent damage to historical artifacts.

The chapel-tomb opened to visitors on December 1, 2008. That day, it hosted an exhibition of Minsk photographer Georgy Likhtarovich's works, "For the Consolation of People…," marking 30 years of Metropolitan Filaret's archpastoral service in Belarus. The exhibit featured 22 Orthodox churches built under his omophorion.Restoration efforts by 2009 included errors. In 2002, during rushed preparations for Belarusian Culture and Press Day, initiated by the Grodno Regional Executive Committee, ground leveling around the tomb caused flooding of its lower section. Furnace restoration was mishandled: instead of careful work with tiles and studying the masonry, furnaces were demolished. Plans to rebuild them with costly new tiles, modeled on the originals, failed to ensure authenticity.

A new oak iconostasis, replicating the original, was installed in the chapel-tomb in autumn 2009. In 2013, the original cross above the royal doors was returned. Services resumed in 2014. On March 22, during the feast of the Forty Martyrs of Sebaste, a memorial service was held in the crypt, requested by Maria Svyatopolk-Mirskaya, Nikolai's great-granddaughter, via the Holy Trinity Church's website. On May 22, the feast of Saint Nicholas, a Divine Liturgy was celebrated.

The chapel is part of the Mir Castle and Park Complex, which became an independent museum on April 1, 2011.

Architecture The building, a monument of metropolitan-level architecture, reflects 19th-century European estate culture, particularly the construction of small chapel-tombs in retrospective styles. Seeking new architectural and artistic expression, Marfeld drew on motifs from ancient Russian art and architecture (e.g., the Christ panel).Art historian A. G. Shymelyevich disputes this, arguing for a connection to classical artistic systems. See: According to Vyacheslav Chernatov, by engaging historical heritage, Marfeld crafted a "distinctly individual artistic composition with an element of paradox", setting the chapel apart from canonical structures. Other art historians note:.Borrowing pertains not so much to specific forms and techniques but to an ideal architectural style model, which he transformed and stylized in line with contemporary aesthetic ideals.

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