Towards the end of the thirteenth century, the gros grand was introduced as a new denomination of currency to replace the Byzantine influenced white bezant. The image of the king on these coins does not follow the Byzantine style that had previously been used, and instead the king, or in this case the queen, is now shown enthroned in a western style.
Metcalf, David Michael. Coinage of the Crusades and the Latin East in the Ashmolean Museum, Oxford. London: Royal Numismatic Society, 1995. Pages 222 - 224
Credit line
The Mildred King Memorial Collection. Gift of Colonel E.J. King, 1935