Just How Infamous?

There is a fascinating character who comes out of Virginia and moves into Kentucky in the very early days of that region. His moniker is interesting.  I ran across him while doing some genealogical work. I knew right away he could not really be a connection - because we have no one famous!  The man's name is Famous Mortimer (sometimes Mortemer, Mortimore).  Since I have a Mortimore line, I wanted to know 'just how famous was this guy?'  He is a much married man - marrying a Mary Blue and a woman named Fanny and possible others. All of which meant a lot of descendants

I ran across a will out of Loudoun County, Virginia in 1779 where a William Mortimer dies of sudden disease while away from home and his last words are described to the court.  His earthly remains and property were left to a mother named Sarah, a sister named Bethelmere, and a brother named...Infamous Mortimer.

So, is Famous really Infamous?  What is this infamy desirable enough to bear their name or to even self-moniker with such appellation?  Apparently in Hertfordshire in England is one clue...  "The Mortimer Trail is named after the infamous Mortimer" who apparently were powerful in the reign of Edward III and later and who plotted, bedded, and schemed to acquire, maintain and add to their political power but in the end achieved a mere passing few notes in history, "family who have been a clan of Marcher Lords. This family ruled the Welsh borderlands for approximately 400 years, starting in Norman times. One of the most  feared and powerful families, their seat was Wigmore and Ludlow Castle  though  they  governed lands from Normandy and all across England and into Wales. These holders of quite a bit of the most influential of the Norman Earldoms influenced the history and geography of the Welsh Marches." ( http://travel-preparation.myvemma4all.com/?tag=mortimer-trail  and  A biographical index to the history of England by Sterling Yancey McMaster).

Did a line of disenfranchised Mortimer's come to the New World with dreams of new success?  Did "Famous" simply drop the "In-" as better PR?  Did he track into the wild of Kentucky with Daniel Boone like visions dancing in  his head?  The frontier had a tendency to make men into myths based on their acts of valor, courage, or daring.  Sometimes their fame remained and sometimes...as records burned, people died, and moved away....history (as it is so often the case) was simply forgotten.