Laurentian Codex

The original text on events from 1284 to 1305 was a lost codex compiled for the Grand Duke Mikhail of Tver in 1305, but Laurentius re-edited the presentation of Yuri Vsevolodovich, the founder of Nizhny Novgorod, from positive into a negative, partly rehabilitating the role of Tatars.

Vasily Komarovich (1976) studied traces of changes within the manuscript and established a hypothesis about differences between Laurentius' version and the lost one of the Tver chronicle.

The number of lost leaves is estimated based on parallel texts from nearby chronicles; there is also a hypothesis that the last lacuna is associated not with the loss of a leaf, but with an omission in the protograph.

[citation needed] It is the second edition of Nestor's chronicle, which had been already revised in 1116 by Sylvester, Hegumen of the St. Michael Monastery in the village of Vydubychi, under the reign of Prince Vladimir Monomakh, and it is the oldest version known today.

[6] This is in line with how the Kievan is generally ambivalent or openly critical of Andrey's reign, whilst the Suzdal'–Vladimirian is positive and complimentary of his actions.