Remember Oscar Zoroaster Phadrig Isaac Norman Henkel Emmannuel Ambroise Diggs?

You almost certainly do - you just didn't know that was his name.

How about Patricia Reichardt?

Barbara Millicent Roberts?

Bibendum?

Jonas Grumby and Roy Hinkley?

John Reid?

The answers are at Mental Floss.  Hint:  this is Patricia Reichardt: