In the sequel, when the States of Holland wanted to indemnify such as were unjustly persecuted during the overgrown power of the Stadtholders[747], they gave Cornelius Grotius a company in the guards; to Peter, a troop of horse; and to Mombas, their brother-in-law, a regiment; with leave to dispose of them, or sell them to the best advantage: which was contrary to custom and law.

It was in 1633 that the States thus sought to repair the injuries which Grotius had formerly suffered. Cornelius died unmarried. Peter, Grotius's second son, was more like his father. In his infancy he was very sickly: having received a hurt in his leg[748], the Surgeons and Physicians treated it so ill, that he remained lame all his days. His father, thinking his education would be cheaper in Holland than at Paris, sent him to his native country. The young Grotius gave great satisfaction to his parents, as we learn by a letter from Grotius to his brother William[749], Oct. 4, 1630, "Your accounts of my son give me great pleasure: if he goes on in the same manner, he will have reason to be satisfied with me." Gerard Vossius directed his studies; and by a letter[750] of thanks from Grotius to him, we learn that he was of an indolent turn. "The exhortations you give Peter are worthy of the friendship you have always entertained for me and mine. I cannot think why my children should be so idle; perhaps it is because they see their father's diligence has turned to so little account."

In 1634 Peter Grotius was sent to[751] Amsterdam to learn the use of the globes and navigation: Grotius intended that he should afterwards serve in some expedition at sea: he seems at this time to have designed him for a Sailor. Peter had an inclination to learn Arabic under the learned Golius at Leyden: but his Father would only suffer him to visit this eminent professor, and consult him about the pronunciation of that language, which he thought his son might learn without a master at his leisure hours.

Grotius was desirous that his son should make a voyage to the East-Indies[752], or, if that was too long a voyage, that he should go to the Brasils, or some other part of America, to learn what was not to be learnt at home, and might be of use to him afterwards.

Vossius, in the mean time, gave ample testimonials not only of Peter's progress in the sciences, but also of his moral conduct. He wanted to join, to the studies recommended to him by his father, that of Law; and Grotius was not against it. He appears to have been somewhat uneasy about what this youth would do: May 17, 1635, he writes to Vossius, "I should be glad to know what my son's health will permit him to do, and to what his inclination leads him: there are some things which will prevent his being agreeable at court, or his undertaking long journies by land. I am not against his trying the sea; but I would not force any of my children against their inclination. The make of his body would require a sedentary life; but I am afraid he has too much vivacity to bear with it. I would beg of you to consult with himself and his friends on this subject; and at the same time to give me your own opinion."

He writes again to Vossius some time after, that if his son had a dislike to long voyages, he would nevertheless have him study Commerce and Navigation rather than the quibbles of the Law: "Not but a general knowledge of public law, and the laws of his own country, may be of use to him whatever manner of life he chuses: but I would not have him make it his principal study; and remember Horace's precept, to keep his eye ever on the mark. If it is out of regard to me he wants to translate the Tragedy of Sophomphaneus, he deserves to be commended, even if he should make some mistakes: however I should not be sorry if it were done by one more advanced in years, and better skilled in poetry."

This youth, uncertain what course to take, was in doubt whether he ought not to seek his fortune in Sweden under the credit of his father's name. Grotius, hearing of this design, writes to his brother[753], "If my son thinks to raise himself in Sweden, I see no other way of doing it, than by a perfect knowledge of Navigation and Commerce. The profession of a Lawyer is not lucrative, nor doth it succeed with every one."

Vossius was still well pleased with him[754]. The ardour he discovered for the study of the Law determined Grotius to propose to him a translation of the Institutes of the Law of Holland into good Latin, like that of the Digests; and he asked his brother, William Grotius, and all his friends, to encourage and assist his Son in the execution of this design, which might be useful to the public and to the author. He wrote to Gerard Vossius[755] to the same effect. William Grotius laboured with his nephew in this translation. Grotius, in returning him his thanks for assisting his Son, desires him to make him read, as he went on, what was contained in the Digests relating to the matter he was translating.

In summer, 1636, Peter Grotius had an offer of going to the Brasils in Count Nassau's retinue. Grotius approved of it, provided his Son might have a creditable post, in which he might learn Navigation: he was the more desirous that his Son might make this voyage, as the present state of his affairs would not permit him to keep him in the way the latter chose to live.

If this project did not succeed, Grotius wanted that his Son should pass the winter at the Hague in the study of the Law, and come to France in the spring, 1637, to take his degree in the university of Orleans; then return to the Hague to study some time longer, and afterwards go to Amsterdam to practise as an Advocate, this profession being there most lucrative.