Misc: which king of england met the king of france on the field of the cloth of gold?

Questions

what spanish soldier of fortune led the party that discovered the pacific ocean?

what olympic event's winner is considered the world's greatest athlete?

what is staged at oberammergau, germany, every 10 years?

what letter is on the hot-water taps in france?

what substance did joseph priestley name for its ability to erase pencil marks?