After a protracted siege, during which the Mongol army under Jani Beg was suffering from the disease, the army catapulted the infected corpses over the city walls of Kaffa to infect the inhabitants. Source: Internet
Biological warfare In 1346, the bodies of Mongol warriors who had died of plague were thrown over the walls of the besieged Crimean city of Kaffa (now Theodosia ). Source: Internet
Galleys from Kaffa reached Genoa and Venice in January 1348, but it was the outbreak in Pisa a few weeks later that was the entry point to northern Italy. Source: Internet
And the name of the town Kaffa sounds very like "coffee." Source: Internet
ISBN 0-19-814098-3 pp. 267 To make matters worse, in May Genoese ships fleeing the Black Death in Kaffa stopped in Constantinople. Source: Internet