"Celui qui combat des monstres doit prendre garde à ne pas devenir monstre lui-même. Si tu contemples longtemps un abîme, l’abîme aussi regarde en toi." N.
Ex-référent/modérateur/administrateur à la retraite
What are the weight and size?
The image of one side reminds me of the "Wildman" on Brunswick coins https://en.numista.com/catalogue/pieces39885.html
Might be worth checking coinage of medieval rulers of that land.
I collect coins and tokens which circulated in Africa from 18th century to 2000. I sell about 7000 illustrated world coins from http://www.avscoins.com.
Try asking on the French forum. I plugged in the stats you gave into the search engine and there were many with a similar cross motif on them and they were all French Feudal coins. There will probably be someone there who can help you out.