 While stranded in one of those islands, he writes a document of the Magellan voyage, he talks about the meeting of Rajah Siaiu the chieftain of Mazaua.De Mafra wrote, "This same chief [Rajah Siaiu] we saw in the year fifteen forty-three by those of us in the fleet of general Ruy López de Villalobos, and he still remembered Magellan, and displayed to us some of the things he [Magellan] had given him.