Thomas Zebrowski (Lithuanian : Tomas Žebrauskas, Polish : Tomasz Żebrowski; November 24, 1714 in Samogitia – March 18, 1758 in Vilnius) [1] was a Lithuanian [2] Jesuit architect, mathematician, and astronomer. He was instrumental in establishing and funding the Observatory of Vilnius University. [3] Marcin Odlanicki Poczobutt was among his students. [4]
Zebrowski studied philosophy and theology at Vilnius University. [1] He briefly taught at Jesuit schools in Kražiai, Ilūkste, and Babruysk and prepared construction projects for churches in these towns. They displayed features of Baroque churches in Vilnius. [4] He also designed the Jesuit school in Zhodishki , houses for nobles, and other buildings. [1] Though documentary evidence is lacking, it is suspected that Zebrowski was also involved in construction of churches in Minsk and Płock, as well as the Oginski residence in Ručyca (Hanuta) village. [4]
After studying at Charles University in Prague under Joseph Stepling in 1750–52, [1] Zebrowski returned to Vilnius, becoming a popular lecturer of physics and astronomy at Vilnius University. [5] He was also interested in geodesy, horology, mineralogy, geography. [4] However, his major passion was astronomy and he pursued funding for an observatory. The construction was funded by Elżbieta Ogińska-Puzynina, while Mikolaj Radziwill and bishop Józef Sapieha donated 13.5-centimetre (5.3 in) and 10-centimetre (3.9 in) diameter reflector telescopes manufactured in Germany. [3] Zebrowski designed the observatory; its construction began in 1753. [5]
Baroque architecture is a highly decorative and theatrical style which appeared in Italy in the late 16th century and gradually spread across Europe. It was originally introduced by the Catholic Church, particularly by the Jesuits, as a means to combat the Reformation and the Protestant church with a new architecture that inspired surprise and awe. It reached its peak in the High Baroque (1625–1675), when it was used in churches and palaces in Italy, Spain, Portugal, France, Bavaria and Austria. In the Late Baroque period (1675–1750), it reached as far as Russia, the Ottoman Empire and the Spanish and Portuguese colonies in Latin America. In about 1730, an even more elaborately decorative variant called Rococo appeared and flourished in Central Europe.
Vilnius University is a public research university, which is the first and largest university in Lithuania, as well as one of the oldest and most prominent higher education institutions in Central and Eastern Europe. Today, it is Lithuania's leading research institution.
Marcin Odlanicki Poczobutt was a Polish–Lithuanian Jesuit, astronomer and mathematician. He was professor of Vilnius University for over 50 years, serving as its rector from 1780 to 1799. The crater Poczobutt on the Moon is named after him, as is the main-belt asteroid 191775 Poczobut. Poczobutt is also the author of the University's motto, Hinc itur ad astra.
Antoni Wiwulski was a Polish-Lithuanian architect and sculptor.

The Cathedral School of Vilnius was a cathedral school attached to the Vilnius Cathedral. Possibly established in the late 14th century, it is believed to be the earliest school in the Grand Duchy of Lithuania. For about a hundred years it was the only Catholic school in Vilnius.
Eišiškės is a city in southeastern Lithuania on the border with Belarus. It is situated on a small group of hills, surrounded by marshy valley of Verseka and Dumblė Rivers. The rivers divide the city into two parts; the northern part is called Jurzdika. As of the census in 2011, Eišiškės had a population of 3,416. It has a hospital and two high schools.
The Catholic Church in Lithuania is part of the worldwide Catholic Church, under the spiritual leadership of the Pope in Rome. Lithuania is the world's northernmost Catholic majority country. Pope Pius XII gave Lithuania the title of "northernmost outpost of Catholicism in Europe" in 1939. The Vilnius Cathedral is the most important Catholic Church in Lithuania, which was previously used for the inauguration ceremonies of Lithuanian monarchs with Gediminas' Cap, while in modern times it is a venue for masses dedicated to the elected Presidents of Lithuania after their inauguration ceremonies and giving of oaths to the Nation in the Seimas Palace.
Vytautas Straižys was a Lithuanian astronomer. In 1963–65 he and his collaborators created and developed the Vilnius photometric system, a seven-color intermediate band system, optimized for photometric stellar classification. In 1996 he was elected a Corresponding Member of the Lithuanian Academy of Sciences. Straižys was an editor of the journal Baltic Astronomy. He spent a lot of time working at the Molėtai Astronomical Observatory. Asteroid 68730 Straizys in 2002 was named after him.
Marcin Knackfus, was an architect, professor, and military captain from the Polish–Lithuanian Commonwealth.
Antoni Tyzenhauz was a noble from the Tyzenhaus family, son of Benedykt Tyzenhauz. As a personal friend of Stanisław August Poniatowski, the King of Poland and Grand Duke of Lithuania, Tyzenhaus became Treasurer of the Grand Duchy of Lithuania and administrator of royal estates. He began to implement various agricultural reforms and pioneered industrialization in an effort to increase productivity and economic power of the Polish–Lithuanian Commonwealth. At first, he was successful and managed to gain considerable political influence; he was considered to be the second man after the King. However, the efforts were based on the old system of serfdom and failed. Eventually, amidst increasing political rivalry with other nobles and mounting debts, Tyzenhauz was accused of fraud and removed from public offices in 1780.
Walerian Protasewicz was bishop of Lutsk (1549–1555) and Vilnius (1555–1579). Born to a family of petty Ruthenian nobles (szlachta), Protasewicz worked as a scribe, notary, and secretary at the chancellery of the Grand Duchy of Lithuania until his appointment of bishop. He was politically active and was one of the lead Lithuanian negotiators for the Union of Lublin in 1569. He neglected religious matters and allowed the Reformation to spread. In the last decade of his life, he invited the Jesuits to the Grand Duchy of Lithuania and funded the Jesuit college in Vilnius. He obtained papal and royal privileges to convert the college into Vilnius University in 1579. He donated his personal library to what became the Vilnius University Library. The university soon became a spiritual and cultural center of the Grand Duchy of Lithuania as well as the major center of the Counter-Reformation.
Vilnius University Library or VU Library is the oldest and one of the largest academic libraries of Lithuania. It was founded in 1570 by the Jesuits and as such is nine years older than Vilnius University. VU Library holds 5.4 million documents on shelves measuring 166 kilometres (103 mi) in length. The holdings, accessible to members of the university and wider public, include some of the oldest manuscripts, incunabula and engravings in Lithuania and Eastern Europe. At present the library has 36 thousand users.
Merkelis Giedraitis was Bishop of Samogitia from 1576 to 1609. Educated at Protestant universities in the Duchy of Prussia and Germany, he actively combated the Reformation implementing resolutions of the Council of Trent in Samogitia. Born into the princely Giedraičiai family, he inherited a much neglected diocese that was reduced to only about 20 priests. He became known for his devotion and work to end clerical abuses, strengthen churches and schools, and increase the number of priests. Giedraitis invited the Jesuits to Kražiai where the Kražiai College was established already after his death and the Bernadines to Kretinga where they established the first monastery in Samogitia. He sponsored Mikalojus Daukša, who translated and published Catechism (1595) and Postil (1599) in the Lithuanian language—the first Lithuanian books printed within the Grand Duchy of Lithuania. He also supported Maciej Stryjkowski, author of the first printed history of Lithuania. In recognition of his efforts, Giedraitis is often referred to as the second baptist of Samogitia.
The history of Lithuania between 1219 and 1295 concerns the establishment and early history of the first Lithuanian state, the Grand Duchy of Lithuania. The beginning of the 13th century marks the end of the prehistory of Lithuania. From this point on the history of Lithuania is recorded in chronicles, treaties, and other written documents. In 1219, 21 Lithuanian dukes signed a peace treaty with Galicia–Volhynia. This event is widely accepted as the first proof that the Baltic tribes were uniting and consolidating. Despite continuous warfare with two Christian orders, the Livonian Order and the Teutonic Knights, the Grand Duchy of Lithuania was established and gained some control over the lands of Black Ruthenia, Polatsk, Minsk, and other territories east of modern-day Lithuania that had become weak and vulnerable after the collapse of Kievan Rus'.
The Church of St. Casimir is a Roman Catholic church in Vilnius' Old Town, close to the Vilnius' Town Hall. It is the first and the oldest baroque church in Vilnius, built in 1618.
The Vilnius University Astronomical Observatory is an astronomical observatory of Vilnius University. It was founded in 1753 by the initiative of Thomas Zebrowski. The observatory is the fourth oldest observatory in the Europe. While the observatory is no longer able to make astronomical observations due to light pollution in Vilnius, it continues scientific research.
John of the Lithuanian Dukes was Bishop of Vilnius (1519–36) and of Bishop of Poznań (1536–38). He was the bishop when Protestantism was making the first inroads into the Grand Duchy of Lithuania and took the first steps in combating it. John was an illegitimate son of Sigismund I the Old, King of Poland and Grand Duke of Lithuania, and his mistress Katarzyna Telniczanka.
The Vilnian Baroque or the School of Vilnius Baroque is a name of late Baroque architecture style in Catholic church architecture of the Grand Duchy of Lithuania, which expanded well into Greek Catholic church architecture on territories covered by the Union of Brest. The style was formed by alumnus of the Catholic Jesuits' Vilnius University. Most preserved buildings in this style are in Vilnius.
Jakub Nakcjanowicz or Nakcyanowicz was a Jesuit priest, mathematician, and astronomer of the Polish–Lithuanian Commonwealth. He was the second director of the Vilnius University Astronomical Observatory (1758–1764).
Piotr Sławinski was a Polish astronomer of the Russian Empire. He was the fifth director of the Vilnius University Astronomical Observatory (1825–1843) and one of the founders of the Royal Astronomical Society in 1820, being its youngest.