The name Sonargaon came as the Bangla version of the ancient name Suvarnagrama. Buddhist ruler Danujamadhava Dasharathadeva shifted his capital to Suvarnagrama from Bikrampur sometime in the middle of the 13th century. In early 14th century, Bauddha ruling in this area ended when Shamsuddin Firoz Shah(reigned 1301–1322) of Lakhnauti occupied and annexed it to his kingdom.