Well I needed an account name for xbox live, and it stuck ever since. Noble because one of my middle names belongs to some noble family or something and crusader because in one of the games I was playing my favourite unit was the Crusader tank.
My initial alias was bes4360. Bes was my nickname and the first three letters of my last name. The 4360 were some of the numbers in my life that I would remember (as if I'm going to tell you Although... I think I posted what they were before...). When the alias changes came into existence, I changed it to what it is now, Besonator. Figure that one out yourself.