Treaty of Sahagún (1170) explained

The Treaty of Sahagún was signed in Sahagún on 4 June 1170 between Alfonso VIII of Castile and Alfonso II of Aragon. Based on the terms of the accord, Alfonso VIII agreed to give Afonso II three hostages in order to be used as tribute payments owed by Ibn Mardanīš of Valencia and Murcia. The hostages were to enter into the hand and potestas (or power) of Afonso I up until the terms of the agreement were met. Moreover, the hostages were not allowed to depart without permission.^[1]

Sources

• Kosto, Adam J. Making Agreements in Medieval Catalonia: Power, Order, and the Written Word, 1000-1200. Cambridge University Press, 2001.

Notes and References

1. Kosto, p. 131. "In the Treaty of Sahagún in 1170, Alfonso VIII of Castile offered Alfons I three hostages for tribute payments owed by Ibn Mardanīš (Lobo) of València and Murcia; they were to enter into the hand and potestas of Alfons I until the terms of the agreement were met, and they were not to depart without permission." Alfonso II was also Alfons I of Barcelona.