Alfonso VI died in 1109, making this issue from the final year of a reign that had, at its height, controlled the largest territorial expanse of any Iberian ruler since the Visigothic period. His capture of Toledo in 1085 prompted the Almoravid intervention from North Africa — a consequence that reshaped Iberian politics for generations. Billon coinage of this period survives in poor condition as a rule, the alloy being particularly susceptible to the alkaline soils of the Castilian plateau.
Alfonso VI died in 1109, making this issue from the final year of a reign that had, at its height, controlled the largest territorial expanse of any Iberian ruler since the Visigothic period. His capture of Toledo in 1085 prompted the Almoravid intervention from North Africa — a consequence that reshaped Iberian politics for generations. Billon coinage of this period survives in poor condition as a rule, the alloy being particularly susceptible to the alkaline soils of the Castilian plateau.