Why did Prague develop along the Vltava River?

Prague developed along the Vltava River primarily due to its strategic location at the intersection of long-standing trade routes that linked northern and southern Europe.1

For thousands of years, this portion of the river served as a natural crossroads. The city’s growth was further facilitated by the Přemyslid dynasty, which established a political center in the region. This consolidation of power allowed the city to leverage its natural trade advantages while providing defensive protection through the construction of fortifications on commanding hills overlooking the river, such as Vyšehrad and Hradčany.1

As the community flourished into a busy trading center, the river became central to the city's topography and economic expansion. The construction of bridges, such as the Judith Bridge and later the Charles Bridge, physically linked the settlements on both banks, fostering the development of districts like the Old Town and Malá Strana.2