At this juncture he succeeded in making his escape from prison in Castile into Aragon, where, under the ancient " fueros " of the kingdom he could claim a public trial in open court, and so bring into requisition the documentary evidence he possessed of the king's complicity in the deed.
" fueros " altogether (1591).
The kings therefore extended special privileges (fueros) to the inhabitants, and they were even at an early date admitted to representation in the Cortes (parliament).
Among the later fueros of the 11th century, the most important are those of Jaca (1064) and of Logrono (1095).
Latterly the word fuero came to be used in Castile in a wider sense than before, as meaning a general code of laws; thus about the time of Saint Ferdinand the old Lex Visigothorum, then translated for the first time into the vernacular, was called the Fuero Juzgo, a name which was soon retranslated into the barbarous Latin of the period as Forum Judicum; 4 and among the compilations of Alphonso the Learned in like manner were an Espejo de Fueros and also the Fuero de las leyes, better known perhaps as the Fuero Real.