Beraintsi (, ) is a small village in Tran Obshtina, Pernik Oblast. It is located in western Bulgaria, 82 km from the capital city of Sofia, 6 km from the town of Tran and 13 km from the border with Serbia. To the north is the Ruy Mountain, which rises 1,706 m above sea level. The village has a permanent population of 15 people, although during the summer period it increases to as many as 150 people. Beraintsi was first mentioned in 1447 as Braintsi. It stems from a family name itself derived from the personal name Beraya, a vocative form of Beray. The first school in the Znepole (approximately today's Tran municipality) was opened in 1778 by Trichko Gusin and existed for nearly a century. Name origin It is assumed that it comes from a personal name or family name - Beraja. Geography It is located in western Bulgaria, 82 km from the capital city of Sofia, 6 km from the town of Tran and 13 km from the border with Serbia. To the north is the Ruy Mountain, which rises 1,706 m above sea level. The village has a permanent population of 15 people, although during the summer period it increases to as many as 150 people. History According to the legends, the village was located under Rui peak, and then the inhabitants moved to the current place of the village. Many years ago, there was a large stone in the Pobit Kamak area, which was broken at the place where the border with Serbia was supposed to be, but one of the locals managed to move the place of the stone to the village of Strezimirovtsi during the night. The land of today's village has been inhabited since ancient times. There are traces of a prehistoric settlement - in the Zavoy locality, on the right bank of the Erma River, on an area of about 10 decares. Fragments with plastic decoration typical of the Hallstatt era have been found here. Life in antiquity here is attested by the ancient settlement, built on the prehistoric settlement in Zavoy and by the late antique settlement (IV-VI century AD) - in Grebulitsa, about 1 km north of the village. Today's village Beraintsi is an old medieval settlement. It was registered as a timar in the Znepol district under the same name with 10 households and a widow in 1447. Later,