of Vlach origin, which are often Slavicized by suffixes ić, ović and ević, with most notable being; Banjan, Balac, Bilbija, Boban, Bokan, Banduka, Bencun, Belen, Bender, Besara, Bovan, Čokorilo, Darda, Doman, Drečo, Đerman, Gac, Gala, Jarakula, Kalin, Kešelj, Keser, Kočo, Kalaba, Kokoruš, Kosor, Lopar, Macura, Mataruga, Pađen, Palavestra, Punja, Riđan, Šola, Šolaja, Šabat, Šurla, Šatra, Škipina, Špira, Tubin, Taor, Tintor, as well Kecman, Šikman, Toroman, Šuman, Karan, Šurlan, Servan. Religion Pope Gregory XI in 1372 letter for Franciscans in Bosnia ordered them to convert Vlachs who live in tents and pastures (Wlachorum... quorum nonnulli in pascuis et tentoriis habitant). Their religion depended upon social and political events. During Ottoman occupation the Orthodox Church was more politically favored than Roman Catholic. The first Orthodox churches in Bosnia and Herzegovina were built in the 13th century on its eastern reaches. Before the arrival of the Ottomans, on the Bosnian proper the Orthodox Church had some presence as the Serbian Orthodox Church, limited exclusively to areas adjoined to the Kingdom of Bosnia by Tvrtko I's conquests in a lands to the east across the Drina River, traditionally under Serbian suzerainty. In the Eastern Herzegovina there was Eparchy of Zachlumia and the Littoral and it held a much prominent role. In the 16th century, although Ottoman law prohibited building of new churches, several Orthodox monasteries were built, notably in Tavna, Lomnica, Paprača, Ozren and Gostović, while Rmanj Monastery in northwestern Bosnia was first mentioned in 1515. According to Noel Malcolm, Orthodox believers were often oppressed and humiliated, although he asserts that Ottoman regime favored the Orthodox Church compared to the Roman Catholic church. Under Christian rule a significant proportion of the churches in present-day Herzegovina were only built under Ottoman rule. Several larger monasteries were built for the needs of the hierarchy such as Žitomislić by the Neretva, Tvrdoš near Trebinje, Nikoljac (in Bijelo Polje), the Holy Trinity in Pljevlja and Piva. The example of Herzegovina reveals that the immigrant Vlach herdsmen had more economic power and they were more religious than their predecessors who lived there under Christian lords. With time the Slavicized Vlachs who were of Orthodox faith were eventually Serbianized, and those of Roman Catholic faith were Croatized., while others who embraced Islam became Muslims (modern-days Bosniaks). Legacy Ilona Czamańska claim that "The majority of Serbs from the Republika Srpska of modern Bosnia is of Vlach origin, as well as the