Hello
Unfortunately coin's condition is not great but I assume it's fare enough to be deciphered.
I've tried to dig for it but the legend is illegible.
Definitely Spanish. Reverse around the patriarchal coss we can see JACOBVS for a king James. Obverse has ARAGON rather clearly.
I think you will find it in the Numista Aragon section.
Great, the name of the state was all I needed, thank You so much @tdziemia !
It seems that this is the coin.
Denier - Iacobus I - Kingdom of Aragon
N#123655
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