Biograd na Moru is a city and municipality in northern Dalmatia, Croatia and is significant for being the former capital of the medieval Croatian Kingdom. Its population is 5,569 (2011). Biograd is administratively part of the Zadar County. It is located on the Adriatic Sea coast, overlooking the island of Pašman, on the road from Zadar and Sukošan towards Vodice and Šibenik.
The city of Biograd is a tourist resort: the first tourists started arriving in the 1920s from Czechoslovakia, and its first hotel was built in 1935.
Biograd na Moru is located 28 km south from the county capital, Zadar. It is located on a small peninsula surrounded by two little bays: Soline in the south and Bošana in the north; in front of it are the islands Planac and Sveta Katarina. The average temperature in January is 7.3 °C and 23.9 °C in July. Biograd is the only settlement in the municipality.
A three-nave basilica was built on the basis of an older 6th century church during the reign of Duke Branimir in the 9th century. The building later became the cathedral of the Bishop of Biograd. One of the most significant characteristics of this building are the semi-circular buttresses, found only on the buildings in Croatia at that time.
The city is first mentioned as Belgradon in the mid-10th century chronicle De Administrando Imperio as one of the populated towns in "christened Croatia". It was the centre of the county (županija) of Sidraga. There are allegations that the bishopric was founded during this time, based on a charter whose authenticity is disputed. Thus, this is not universally accepted by historians.
