Facilè princeps.

http://lila-erc.eu/data/lexicalResources/LatinPortuguese/Velez/id/UsageExample/n2744.sg01.s99.u01 <http://www.w3.org/ns/lemon/lexicog#UsageExample>

Facilè princeps. 
Facilè princeps, 
sem duvida o principal. 

data from the linked data cloud