U radu se obrađuje povijest crkve posvećene Majci Božjoj na nebo uznesenoj na lokalitetu Kloštar kod Slavonskog Kobaša. Uz Kloštar se vežu mnogi crkveni redovi: templari, cisterciti, augustinci, ivanovci i franjevci, koji su ostavili svoj trag na tom području. Današnje područje oko Kloštra bilo je posjed Giletića, koji je kasnije pripao Berislavićima. Za vrijeme Turaka uništen je samostan, a sadašnja crkva ostatak je svetišta nekadašnje crkve. Župa je na + Kloštru postojala do 1698., kada je sjedište župe premješteno u Kobaš, a župna crkva postala je crkva svetog Ivana Krstitelja. Otada je crkva Uznesenja Blažene Djevice Marije na Kloštru filijalna crkva. Uz svetište na Kloštru vezane su dvije legende o čudotvornoj slici i zavjetnoj slici iz 1764. godine. U radu se obrađuju pobožnosti kojima Kobašani i drugi vjernici štuju Majku Božju Kloštarsku više od dva stoljeća. Tradicija pobožnosti prenosi se s koljena na koljeno i još je uvijek živa među Kobašanima i onima koji su odselili iz Kobaša, ali se uvijek rado vraćaju za blagdan Velike Gospe. U drugom dijelu rada obrađuje se kratka povijest kruničarskog društva, koje djeluje u Slavonskom Kobašu od 1929. godine. Kruničarskom društvu je u deset godina (od 1929. do 1939.) pristupilo više od 160 žena, stoga društvo danas djeluje u 12 grupa i okuplja 170 žena i djevojaka koje svaki dan mole deseticu svete krunice i druge molitve. U radu se navode obveze kruničara i pobožnosti koje obavljaju članice kruničarskog društva iz Slavonskog Kobaša. U prilogu rada zapisane su litanije i pjesme posvećene Majci Božjoj Kloštarskoj. Place Kloštar near Slavonski Kobaš is a Shrine of Saint Mary located three and a half-mile west of Slavonski Kobaš. On this place, which has a rich history, is the Church of the Assumption of the Blessed Virgin Mary, and this paper will be about the history of the church and this area from 1174 to the present day. Before the Ottomans, there was a monastery in which were Templars, Cistercians, Augustinians, Ivanovites, and Franciscans and they all left their trace there. This place was a possession of family Giletich's, after them it devolved to Berislavich family and united with their lands is one possession called Kobaš. Ottomans destroyed monasteries and left ruins from which people made chapel. In that period land devolve to Kutjevo monastery, and after that, it was ruled by Franciscans from Velika. The seat of Parish was moved to Kobaš in 1698th and since then, it’s subsidiary. There are two legends connected with this place, a miraculous image and a votive image from 1764th. Since the 18th Century people from Kobaš and other believers worship Mother of Good in Kloštar. Every year people from Kobaš pilgrimage three Sundays before The Assumption of Mary into Heaven and make vows which are ending with solemn holy mass and votive procession praying for intercession, healing, and other intentions. The tradition of piety is passed down from generation to generation and every year more than 10 000 people are coming to Kloštar and pray to Saint Mary. The second part of this paper will show the short history of the Holy Rosary fraternity from Slavonski Kobaš which is established in 1929. The Holy Rosary fraternity gathered more than 160 women (from 1929th to 1939), so today fraternity is active in 12 groups and gathers 170 women and young women. They are praying every day part of Rosary and other prays. This paper will show how someone can become part of a fraternity and which obligations have members of the Holy Rosary fraternity from Slavonski Kobaš.