Gilbertus princ 4,42...

http://lila-erc.eu/data/lexicalResources/NLW/id/attestation/3513 <http://www.w3.org/nl/lemon/frac#Attestation>

Gilbertus princ 4,42... 
Gilbertus princ 4,42 p.1263D. 

data from the linked data cloud