I was looking through this profile and I when I research it, I can only find the name Cadwal ap Cangan. After doing some more research I have found that the "Name " Crisban is a nick name. It could also have beemn the name Crys-Halog. Here are the drfinitions of each:
Crysban or Crisban or Crys-Halog was his nickname.
What does Crisban mean?
“Crisban” (or sometimes seen as “Crysban”) is a Welsh nickname that likely refers to clothing or appearance. It is generally understood to mean something like:
“Short-shirted” or “tight-shirted”
“Crys” = shirt
“Ban” can mean high, short, or prominent depending on context
So Cadwallon Crisban could mean:
Cadwallon the short-shirted
or Cadwallon in a distinguished shirt/appearance
This nickname would’ve helped distinguish him from other Cadwallons—especially important in genealogies where that name shows up a lot.
Crys-Halog literally means:
“Fouled Shirt” or “Dirty-Shirted”
It’s a descriptive nickname—probably not complimentary. In a genealogical context, this might be a reference to:
Unkempt appearance
Social or moral disapproval
Or possibly a legendary or symbolic label associated with a story (e.g., someone coming back from battle or shamefully stained)