Crusaders, Mytilene (Lordship). Francesco I Gattilusio, AD 1355-1384. Bl, Denaro. 0.33 g. 14.84 mm.
Obv: Castle Tournois.
Rev: Palaeologantetragrammatic cross. Palaeologan cross formed by B's and retrograde B's.
Ref: Lunardi G21.
Very Fine.
Showing the Byzantine Emperor's tetragrammatic cross as a sign of his vassal status.