Seal of <a href="https://en.wikipedia.org/wiki/Walter_V_of_Brienne" class="extiw" title="en:Walter V of Brienne">Walter V of Brienne</a>, appended on his testament, 1311.
Original design: unknown 13th-century artist; Sketch: Gustave Schlumberger (1844–1929)
1311
Gustave Schlumberger. "Sceaux des feudataires et du clergé de l'empire latin de Constantinople". In: Bulletin Monumental, tome 62, 1897. pp. 421-458