Royal necropolis of Alaca is created by thirteen tombs dating from about 2500 BC.
Sources:
- Jak Yakar, Presumed Social Identity of the Occupants of Late Third MIllennium BC Alacahoyuk and Horoztepe "Royal Tombs"in: Journal of Archaeomythology 7: pp. 1–8 - https://www.academia.edu/9686868
- Joost Blasweiler, The Kalehisar mountain and the deities of Arinna, the city of the Sun Goddess, Arnhem (nl) 2017 – 1 Anatolia in the bronze age - https://www.academia.edu/30853831