Not sure.
He never left the Phillipines or finished circumnavigating the world.
I've heard two different variants of the story from two sources.
The funnier one I got from a college prof.
Magellan's priest gathereed the heathens around. He showed them a cruxifix. The natives took this to mean the Spaniards will "bring painful death" so got rather upset.
The History channel story is much more involved.
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Fear leads to anger. Anger leads to hate. Hate leads to suffering.