Seal of <a href="https://en.wikipedia.org/wiki/Richard_Orsini" class="extiw" title="en:Richard Orsini">Richard Orsini</a>, <a href="https://en.wikipedia.org/wiki/Count_palatine_of_Cephalonia_and_Zakynthos" class="extiw" title="en:Count palatine of Cephalonia and Zakynthos">Count palatine of Cephalonia and Zakynthos</a>.
Original design: unknown 13th-century artist; Sketch: Gustave Schlumberger (1844–1929)
1264
Gustave Schlumberger. "Sceaux des feudataires et du clergé de l'empire latin de Constantinople". In: Bulletin Monumental, tome 62, 1897. pp. 421-458