The Tswana (Tswana: Batswana, singular Motswana) are a Bantu-speaking ethnic group who are native to Southern Africa. The Tswana language is a principal member of the Sotho-Tswana language group. Ethnic Tswana made up approximately 85% of the population of Botswana in 2011.
Batswana are the native people of south and eastern Botswana, and the Gauteng, North West, Northern Cape and Free State provinces of South Africa, where the majority of Batswana are located.
Conquered territories were often left relatively unchanged under their old rulers as long as they recognized Aztec supremacy and paid tribute. Hope this helps
