Ordinum Hollandiae ac Westfrisiae pietas
Ordinum Hollandiae ac Westfrisiae pietas ( "The Piety of the States of Holland and Westfriesland" ) is a 1613 book on church polity by Hugo Grotius . 
<triplet> Ordinum Hollandiae ac Westfrisiae pietas <subj> Hugo Grotius <obj> author