Seals of <a href="https://en.wikipedia.org/wiki/Philip_I_of_Piedmont" class="extiw" title="en:Philip I of Piedmont">Philip of Savoy</a>, Prince of Achaea (1301-1307). Inscription: +S: PHILI[PPI DE SA]BAVDIA. MILI[IS] PR[I]NCIPIS ACHAYE (top)
Original design: unknown 13th-century artist; Sketch: Gustave Schlumberger (1844–1929)
1303
Gustave Schlumberger. "Sceaux des feudataires et du clergé de l'empire latin de Constantinople". In: Bulletin Monumental, tome 62, 1897. pp. 421-458