Loyal and Strong. Sancho Ramírez granted Tafalla its first charter, later confirmed by Sancho the Wise in 1157 and Theobald II in 1255. Sancho VII the Strong granted another charter to the Tafallese, freeing them from taxes.

In 1418, Carlos III the Noble granted the privilege of holding a fair, and in 1423, he granted Tafalla a seat in the Cortes