[2] Manuel Dieç compiled, by order of Alfonso V, between 1424 and 1436, the information about equine veterinary medicine provided by the most famous professors in the army and the classical and modern texts he could find, forming with them the Book of the Art of Menescalia.

The original manuscript of 1436 was translated into Spanish in 1499, and then into Aragonese, Portuguese, Neapolitan, and French, and is cited as a reference in works printed in Paris, Mexico, Bologna, and Nuremberg.

It emphasizes the clarity and good method with which the author set out the same ideas, as well its being the first work of these characteristics to tie the horse with astrology, although it did not contain any worthy advance of consideration in the opinion of Pedro Darder.

That book was spread in handwritten copies and also printed in the fifteenth and sixteenth centuries in its original Catalan version (Barcelona 1515 and 1523) and in Spanish (Zaragoza 1495, 1499, and 1545; Toledo 1507, 1511, and 1515), etc.

[6] We know because it is written in the title of the printed book that the author of the Llibre del Coch was called "Master Robert",[7] and that he was a cook of "King Ferdinand of Naples",[7] but we do not know if he was born in Nola,[7] in Noia,[8] or elsewhere, nor "does anyone know who was this personage"[7] only that he was "a native of Catalonia".