#a fun fact you might not have known: the beylnor family seems to have had some sort of tie to the septim family; starting with martin.

[innovationcomeseasy]

Precisely.

Of course, there's no way to know for sure if he were mantled.. but even so, Thalien was a good 200-250 years behind Lucas..

So what happened in that time?

Because obviously there were more Sylvars around in that time, otherwise the ones that Lucas knew wouldn't have existed at all.