William II de Villehardouin (Guillaume ΙΙ de Villehardouin), prince of Achaia joined battle with the triarchs of Euboea, with whom he entered into a treaty in 1262. On the picture, bronze coin of Guillaume ΙΙ de Villehardouin. 1246-1278.
Tzamalis, P. Α., Ta nomismata tis Fragkokratias 1184-1586, Noummio publications, Athens 1981, p. 79, phot. 56.
Athens, Private Collection