In 1652, he married, for love, an Attorney's daughter, rich and handsome; but his mother and his other friends disliked the match. In the year following, a powerful party wanted to get him made Greffier of Amsterdam; but Veue Linchovius opposed him with great virulence and violence; maintaining that such a place ought not to be given to the son of an out-law, whose religious sentiments were erroneous. The declamations of this hot-headed man preventing Grotius from being nominated to the place, he bore the disappointment with great tranquility. In 1655, he purposed to publish a complete edition of his father's works, as appears by the privilege of the Emperor Ferdinand III. dated Oct. 2, 1655, prefixed to his theological works. This edition, which unfortunately he did not go on with, was to be in nine volumes in folio. The first was to contain his _Annotations on the Old Testament_; the second, the _Commentary on the New_; the third would have comprehended his smaller theological pieces; the fourth, the treatise _De Jure Belli & Pacis_, the _Apology_, and the work _De Imperio summarum potestatum circa Sacra_; the fifth, _Law Tracts_; the sixth, _Writings Historical_; the seventh, _Philological Works_; the eighth, _Poetical Translations_, the _Anthologia, Stobaeus_, and the _Extracts from the Tragedies and Comedies_; and, lastly, the ninth, his _Poems_ and _Letters_. It is probable, that this design was defeated by Grotius's departure from Holland. It was not till long after, in 1679, that the handsome edition of Grotius's theological works was published in three volumes in folio, dedicated to King Charles II. of England by Peter Grotius, Feb. 28, 1678. The bookseller promised, in an advertisement prefixed to it, to print all Grotius's other works, even those that had never been published; but he did not fulfil his engagements. Grotius's enemies still opposing his son's advancement, he entered into the service of Charles Lewis, Elector Palatine, to whom Hugo Grotius had done singular service during his misfortunes. This Prince nominated him his Agent at the Hague.