The textual transmission of the (a historical text written in Galicia in the 15th century) has been controversial in recent years. Its latest editor, José Souto, holds that the original text is the oldest manuscript (C), written in the 15th century by Rui Vázquez. On the other hand, David Mackenzie considered that this manuscript (C) and the seventeenth-century copy (V) come from the lost archetype with different degrees of manipulation. The historical data provided by Fernando López Alsina analysing the reasons for the composition of the supports Mackenzie’s analysis. The present article examines the indirect tradition and carries out a careful collation of the texts, aiming to draw more effective conclusions as regards the existing filiation.