All that is known of Leonardo Sánchez was that he was present at the 1540 muster as a member of Maldonado's company.
1540-1550:
1540, Feb.: Muster in Flint & Flint, Documents, Document 12 [one horse, elk hide jacket, helmet, native arms, Maldonado's company]
León Sánchez ?AGI, Indiferente General, 1529, N.2 [relación de tasaciones de pueblos de Indios de Nueva España, 1560; "Teulotepeque en la dicha provincia [Oaxaca] en León Sánchez esta tasado en savanas gallinas maiz que vale doscientos e quinze pesos"]
Other info: ?Piferrer, Nobiliario, 4:153, #1758 [many people used the patronyms like Sancho, especially from lineages from Castile, Aragon and Navarre; progenitor via reliable sources was Rodrigo Sánchez; escudo - quartered, 1st of gules and a gold castle with 2 keys high up of silver, which is de Alcázar; the 2nd is silver and a banda of sinople with gold dragons linguados de gules, which is Sánchez; 3rd is García; and the fourth of gold and una faja of blue and en el gefe, encima de la faja un leon de gules rapante, which is Ponce de Leon]