Unknown medival coin

[pinpoint]

Friendly ask for help to determine this unknown coin .
Diam. 15 mm / 0,7 gr. / Silver
Coin found by one of the members of our forum ( BVW) in The Netherlands .
Caroligian ?? Front : King ? with crown , star , circkel ( letter O )
Rev. : temple

Any info is welcome

Greetz from The Netherlands , Pinpoint

[QVINTVS]

Hello pinpoint,

this coin looks like some coins from bavaria. But it looks only similar and I never see a star right from the had. But there are "Beischläge" from other aereas like Böhmen, and so on.

Best wishes