Read carefully:
Yep, according to Wikipedia, King Philip II of Spain’s habit of loitering around Madrid’s seedier hostels—for which he was openly ridiculed in the burgeoning popular press—finally paid off on this date in 1570, when he convinced some backpackers from Amsterdam to come back to his place (the Royal Palace) for a private tour. Let this be a lesson to you kids: history is always written by the Wikipedia users.