Subsistence strategies of Eurasian pastoral populations have been broadly studied in the archaeological literature. The 'Valley of the Kings' in Tuva, Russia, has captivated archaeologists with its remarkable collection of large burial mounds, containing lavishly equipped tombs of nomadic kings, warlords, and aristocracy. These barrows bear witness to the ancestral connections between the deceased leaders, highlighting the alliances among prehistoric nomads in Central Asia. In this research, we present comprehensive radiocarbon dating and δ13C/δ15N isotopic data from the Chinge Tey barrows, which represent the burial sites of 12 high-ranking individuals. The chronological alignment of both Chinge Tey monuments with the Arzhan 1 and Arzhan 2 reference frames sheds light on their historical context. This study delves into intricate aspects of ecological adaptability, pastoral food practices, social hierarchies, and nomadic mortuary rituals. Analysis of carbon and nitrogen stable isotopes indicates potential connections between the barrows in the 'Valley of the Kings' and diverse nomadic cultures, suggesting that dietary habits among neighboring populations may have exhibited significant variation.