Was just randomly looking at https://www.cervantesvirtual.com/obra-visor/oraculo-manual-y-arte-de-prudencia--0/html/fedb3724-82b1-11df-acc7-002185ce6064_2.html and was caught off guard by the use of the letter ç to represent the sound of z. Also noticed a few words spelled with an i instead of y like how it says "rei" instead of "rey."