The Gros denomination
The Gros was a medieval silver denomination originally struck in France, but also by some Crusader states. Though the names are related, it is larger than the German 'Groschen'.

The original gros created by Louis IX weighed about 4.52 g of nearly pure silver, and was valued at one sou, that is 12 deniers or 1/20 of a livre tournois. Unlike the gold écu that was minted in small numbers, mostly for prestige reasons, the gros was a very common coin, and very widely copied by non royal mints.

(1) Hugh IV of Cyprus 1324-1359
Obverse: Hugh seated facing, holding scepter and globus; B to left.
Reverse: Jerusalem cross.
Ref: Metcalf, Crusades 756; CCS 69.