As Mel Brooks said in History of the World: Part I, "It's good to be the king." You live in a castle, deposit your feces through parapet chutes onto the villagers below and acquire a neat nickname for future generations of bored schoolchildren to memorize.
That being said, not every ruler is lucky enough to be "The Great," "The Wise" or even "The Degenerate" (here's looking at you, Albert II, Margrave of Meissen!). Thanks to sheer bad luck or their own epic fuckuppery, the following 10 kings, princes and noblemen have gone down in history as eternal losers.
10Harald I, the Lousy
This king wasn't lousy as in "below average." On the contrary--in 872 AD, he founded the kingdom of Norway at 22-years-old, an age when many of us were beer-bonging our way through bachelor's degrees. No, Harald was was called the Lousy as in "it's time for the school nurse to inspect your scalp with a #2 pencil."
According to legend, Harald I vowed not to cut his hair until he was the king of Norway. By the time he scored the crown a decade later, he looked less like a King and more like the Son of Kong. We assume Harald's eldest son's own name, Eric Bloodaxe, was a not-so-subtle attempt to distance himself from his dad's legacy as a walking, talking vector for body lice.