Seal of <a href="https://en.wikipedia.org/wiki/Joanna_I_of_Naples" class="extiw" title="en:Joanna I of Naples">Joanna I of Naples</a>, Princess of Achaea (1374-1382). Inscription: +IOHANNA [....SI]CILIAE PRI[NCIPISSA]........R[O]MANIE DESPO[TISSA]
Original design: unknown 14th-century artist; Sketch: Gustave Schlumberger (1844–1929)
circa 1380 <div style="display: none;">date QS:P,+1380-00-00T00:00:00Z/9,P1480,Q5727902</div>
Gustave Schlumberger. "Sceaux des feudataires et du clergé de l'empire latin de Constantinople". In: Bulletin Monumental, tome 62, 1897. pp. 421-458