Ottoman Turks were widely accused of drinking human blood

Evidence

The Grand Turk at the Siege of Rhodes was also accused of drinking blood, a charge made against numerous Turks during the fifteenth and sixteenth centuries. — Sophia Rose Arjana, Muslims in the Western Imagination, 979

Categorization

• XREF: Blood-drinking as a recurring monster-trait — the manufactured cannibalistic/parasitic image applied to Ottomans, parallels the blood-libel tradition against Jews.
• QUESTION: How did the blood-drinking accusation transfer from Christian heresy and Jewish blood-libel to Ottoman Turks in the 15th-16th centuries? A genealogy worth mapping.