Manuel I of Portugal

”And of more pressing example, Albuquerque, viceroy in the Indies for Manuel, King of Portugal, in an extreme peril of shipwreck, took a young boy upon his shoulders, for this only end that, in the society of their common danger, his innocence might serve to protect him, and to recommend him to the divine favor, that they might get safe to shore.

When Manuel, John’s successor, became king, he first set them free.