Semberija (Cyrillic: Семберија, pronounced [sɛ̌mbɛːrija]) is a geographical region in north-eastern Bosnia and Herzegovina. The main city in the region is Bijeljina. Semberija is located between Drina and Sava rivers and Majevica mountain. Most of the region is situated in the entity of Republika Srpska, and the smaller part in the entity of Federation of Bosnia and Herzegovina. Semberija has a very rich history. It was first mentioned in 1533 during the Ottoman rule. During the Austrian rule villages in Semberija were destroyed. Name Semberija is from Hungarian origin and probably related to the time of XII-XVI century when this area occasionally held the Hungarian Kingdom. Today in area of Semberija lives about 200 000 inhabitants, but mosty in the municipality of Bijeljina.

Municipalities in the region of Semberija:

The Tavna Monastery is located in the southern part of the Bijeljina municipality. The date of foundation is hidden somewhere in the shadows of the far past. The cronichles of monasteries Tronosha and Pech say it was built by Dragutin's sons Vladislav i Urosic. Stefan Dragutin was the King of Serbia from 1276 to 1282 and king of Srem from 1282 to 1316. The present church of monastery Tavna, is built in the same place as the original one. The Tavna Monastery is older than the other monasteries in the region such as Ozrena, Liplja, Vozuce and Gostovica. Tavna was damaged in the first years of Turkish rule, but was restored by the people. This was not the only time the monastery was damaged. It was damaged many times during the Turkish period and also during World War Two. Between 1941 and 1945 Tavna was bombed by the Ustase. On one of the gravestones it says "Zdravko Jovacnovic Killed 1943 by the Ustasa Blue Division protecting and defending the monastery". After World War II Tavna was rebuilt.

Dejan Marković (Serbian Cyrillic: Дејан Марковић ; born 26 May 1973 in Zemun) is a retired Serbian football player and now trainer/manager of FC Naters in Switzerland.

After playing with FK Partizan in the Yugoslav First League, in 1992 he moved to Spain where he played until 2000, with UE Figueres, CD Logroñés and CA Osasuna. Before retiring, he also played in Austria, with Admira Wacker, and in Switzerland, with FC Naters where he became trainer.