The town peaked around 1600, after which it declined to become the village of Târgșoru Vechi, located about 7 km (4.3 mi) southwest of Ploiești.
Built in a heavily forested area, Târgșor developed thanks to the local fair and its auspicious location at a crossroad of several trade routes.
[2] Unlike other Wallachian cities at the time, in Târgșor there were no traces of German colonists, nor a Catholic church.
[4] Some historians argue that Ștefan IV of Moldavia's 1526 attack led to the demise of the city, but there are records of Târgșor merchants in Brașov long after this moment.
[3] The decline of the town began in the 17th century, the main reason being that the emergence of a larger nearby city, Ploiești.