[1][2] The Gaóns were a Jewish family in Vitoria, Álava, today in the autonomous community of the Basque Country, Spain.
In 1463, Jacob Gaón went to the province of Gipuzkoa and reclaimed a tax called pedido to the inhabitants of the villa of Tolosa.
They refused, arguing they had an exemption from paying these tributes, according to fueros and laws passed by the previous kings.
When King Henry IV of Castile knew his collector had been killed, he headed to Tolosa, in order to avenge his death.
The Guipúzcoan local authorities applied to the king, explaining the Tolosans' reasons and begging pardon for them.