viscount to persuade a hero?????????

[EKong]

im pretty sure the rule is like for every title up thts 10 lvls higher u can persuade
title1=lvl1-10
title2=lvl 11-20
title3=lvl 21-30
title4=lvl 31-40
title5=lvl 41-50
and so on

So, is it possible to persuade a level 101+ hero then?