Referenced In

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

"Pentam, or as in Ram. Pentan, is no doubt the Bintang of our maps, more properly Bentăn, a considerable Island at the eastern extremity of the Straits of Malacca."

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

"So is Bintang, with the exception of its south-western side, where is now Riāu, and where, a little further towards the north, was the settlement at which the chief of the island resided in the fourteenth century."