This article presents previously unknown archaeological evidence of a mid-second-millennium bc kingdom located in central western Anatolia. Discovered during the work of the Central Lydia Archaeological Survey in the Marmara Lake basin of the Gediz Valley in western Turkey, the material evidence appears to correlate well with text-based reconstructions of Late Bronze Age historical geography drawn from Hittite archives. One site in particular—Kaymakçı—stands out as a regional capital and the results of the systematic archaeological survey allow for an understanding of local settlement patterns, moving beyond traditional correlations between historical geography and capital sites alone. Comparison with contemporary sites in central western Anatolia, furthermore, identifies material commonalities in site forms that may indicate a regional architectural tradition if not just influence from Hittite hegemony.