In the early 20th century, Zacarías García Villada discovered the Nodicia de kesos on the backside of a tenth-century parchment recording a gift to the monastery of San Justo y Pastor, which was located in either Chozas de Abajo or Ardón del Esla in the Kingdom of León.
Its orthography is reflective of early Iberian Romance pronunciation and diverges sharply from classical Latin.
The document is one of the texts that Ramón Menéndez Pidal used in his work Origins of Spanish (1926) to give an account of the state of peninsular romances in the 10th century.
[3] Nodicia de /kesos que /espisit frater /Semeno: jn labore /de fratres jn ilo ba- /celare /de cirka Sancte Ius- /te, kesos U; jn ilo /alio de apate, /II kesos; en [que] /puseron ogano, /kesos IIII; jn ilo /de Kastrelo, I; /jn ila vinia majore, /II /que lebaron en fosado, /II, ad ila tore; /que baron a Cegia, /II, quando la talia- /ron ila mesa; II que /lebaron Lejione; II /..s...en /u...re... /...que... /...c... /...e...u /...alio (?)
/... /g... Uane Ece; alio ke le /ba de sopbrino de Gomi /de do...a...; IIII que espi- /seron quando llo rege /uenit ad Rocola; /I qua salbatore ibi /uenit'