What do you think about giving a child many names?

What I mean is the way royalty does it. It seems more people are giving more than one middle name. As long as the first name is easy for the child to pronounce and learn to spell do you think there is any thing wrong with (just a generic totally made up example) Mary Annelise Veronica Marie Warren? What do you think the limit should be...3 names, 4 names, 5 names, etc.