The document is a family tree of eight generations connected by lines. The male family members sit on stools, the female members kneel on the floor. The head of the extended family and his sons each bear a personal name in Aztec pictorial script. In the 3rd generation, only one person is named with their name hieroglyph, a heart (yolotl). One person in generation 4 is adorned with a forked headdress made of heron feathers, which is otherwise only worn by the progenitor of the princes of Tlaxcala. In the 5th generation, only one person still has this attribute, the badge of noble warriors of higher rank. The descendants of the 6th, 7th and 8th generations are only represented by heads, apart from the one with the corresponding authority. In the last generation there were only female descendants, recognisable by their hairstyle. The first appearance of Spanish names in Latin script serves as a chronological fixed point. The Spanish conquest should therefore be placed between the 4th and 5th generation. One of the main concerns of genealogical records from the early colonial period was to prove claims to power and territory vis-à-vis the Spanish crown. (M. Gaida)