Referenced In

The Travels of Marco Polo
by Marco Polo, da Pisa Rusticiano

"Black Tigers and black Leopards are not very rare in Travancore (See Welsh’s Mil. Reminiscences, II. 102.)"

The Travels of Marco Polo
by Marco Polo, da Pisa Rusticiano

"Real order list: 'Coilum (Travancore)'."