 The first settlement in the area of Zielona Góra was built in the valley near the Złota Łącza stream during the reign of the Polish ruler Mieszko I.The oldest settlement was agricultural and later developed into a trading point along routes from Poznań to Żagań and further to Łużyce.The written records of the Slavic settlement date to 1222 and an increase of its population by Henry the Bearded.