The top right one is definitely Livonian. It is a 1 pfennig piece from the Archbishopric of Riga, which was minted under Silvester Stodewescher (1448 to 1479). You can find that type's page here:
https://en.numista.com/catalogue/pieces139775.html.
The top left one... might be Livonian. It reminds me of Hermann II Wesel coins from the Bishopric of Dorpat, but compared to the Stodewescher one, it does not match the pfennig (there should be a shield around the key). The schillings do not have a shield, but they should be too large. I would need better pictures on that one.
(And here is a link to the pfennig:
https://en.numista.com/catalogue/pieces142198.html.)
The bottom right one may be a Thomas Schöning pfennig from the Archbishopric of Riga, but... I doubt it. Specifically because of the shape of (what reminds me of) the shield, located in the first picture. With that said, I remember only ever being able to find one picture of that type, so there could be varieties I do not know of.
(And here is a link to the type I am talking about:
https://en.numista.com/catalogue/pieces139783.html.)
And the bottom left one does not remind me of any Livonian coins...
