Two old small silver coins from France (?)

Hello, I have two small silver coins I can't identify, they might both be from France.

Left one is 1.2 g, diameter 21 mm
Right one is 0.85 g, diameter 17.5 mm

Thanks for help :)
Michael

The larger 21mm coin is Henry IV of France ...

HENRICVS IIII D G FRA ...

The reverse needs rotating 90 degrees to the left.

Only NE visible from
+ SIT NOMEN DNI BENEDICTVM (date)
which starts with a cross at the top, then NE is next to a fleur and
the date would be top left next to a crown.
So a large central cross with alternating fleur then crown in the four angles.

That obverse lettering may be something like
HENRICVS IIII D G FRA ET NAVA REX
Henry IV, by the Grace of God, King of France and Navarre

Something like this larger 24mm coin ...

http://www.monnaiesdantan.com/vso5/henri-douzain-2eme-type-p661.htm

The other from the dauphiné, showing the Dauphin (dolphin)

Thanks for your help :-) So the first one looks like a Douzain from Henry IV, but the weight is just 1.2 g instead of > 2 g. Is this just strong wear or was there a coin unit like a half Douzain?

I also know the Quinzain but not sure about the weight

And the dolphin coin - do you also see (L)VDOVICUS above the dolphin in inscription or do I just fantasise? Is this from Louis XI. (reg. 1423-1461). The time would fit to the antiquated letter design I think.

Yes, LVDOVICVS - this (though 20mm) is similar

https://www.cgbfr.com/louis-xi-le-prudent-liard-au-dauphin-n-d-paris-tb,bry_469326,a.html

Obverse: LVDOVICVS FRANCOR REX
Reverse: SIT NOME DNI [BEN]EDICTV

I think that time period could fit.
from the size and weight it might be a quart de gros
I might have to look if I have literature with that coin in it.

Zac you are awesome
to be sure on the two best to ask one time also on the french forum.