A 16th c. manuscript of truly remarkable content is kept at the Russian State Archive of Ancient Acts (RGADA) – No 88, Op. 1, Obolensky Collection (f. 201). It includes an excerpt of the Life of Stefan Lazarević by Konstantin Kostenečki and a Rodoslov (Genealogy) of the Serbian rulers designed as a Loza Nemanjića-type family tree scheme. The genealogical work replicates part of the facts from the hagiographic one, but complements the vita and enriches the information it provides. The excerpt from the Life of Stefan Lazarević is an account about the rulers of the Nemanjić dynasty, from Stefan Nemanja to Uroš V and from Vukan to Stefan Lazarević. The Genealogy does not overlap with any of the known Serbian chronicles. It has a larger chronological scope and deals with the so-called second branch, which is presented briefly in most related texts. While the hagiographical part talks about the descendants of Stefan Prvovenčani (the “First-Crowned”), the second part emphasizes the descendants of his brother Vukan. There are included those representatives of the dynasty who were rulers or wives of rulers. Considered as a whole, the two texts show a different conception of power and this distinguishes them from other Serbian Genealogies.