I. The learned and illustrious Writer whose Life we undertake to give, derived the name of Grotius from his great-grandmother, married to Cornelius Cornets. This was a Gentleman of Franche-Compte, who travelled into the Low-Countries about the beginning of the sixteenth century, and coming to Delft, got acquainted with a Burgomaster who had an only daughter: He took a liking to her, asked, and obtained her in marriage. The name of this magistrate was Diederic de Groot, or Diederic the Great; his family was of the first distinction in the country; and had produced several persons of great merit[2]. It is said the name of Great was given to one of Diederic's ancestors, above four hundred years ago, for a signal service done his country; and it has been observed[3] that all who bore the name of De Groot distinguished themselves by their zeal for the public. Diederic de Groot had several important employments, in which he acquitted himself with great honour. The name of his only daughter was Ermengarda de Groot: Her father, on giving his consent to her marriage, insisted that the children should bear the name of De Groot; and Cornelius Cornets agreed to it in the marriage contract. There were several branches of the Cornets: one settled in Provence, as we are informed by[4] Grotius. FOOTNOTES: [2] Acad. Leid. ed. 1614. [3] Vita Grotii ap. Batesium, p. 420. [4] Ep. 264. ad Peyresc. p. 91. II. Cornelius Cornets had by his marriage with Ermengarda de Groot a son named Hugo de Groot, distinguished by his knowledge of the Greek and Latin, and his skill in the Hebrew. He died in 1567, fifth time Burgomaster of Delft. He married Elselinga Heemskerke, of one of the ancientest noble families in Holland, and by her had two sons, Cornelius, and John de Groot. III. Cornelius de Groot, eldest son of Hugh, was born at Delft on the 25th of July, 1544. He studied with much success at the University of Louvain, at that time very famous. The Greek and Hebrew he knew perfectly, and was well acquainted with the Mathematics. The Platonic Philosophy pleased him extremely, and he retained a liking to it all his life: he had read all the books of the sect, had commented their works, and knew them almost by heart. The Law wholly took him up afterwards: he went to study it at the faculty of law at Orleans, the most celebrated for that science, and took the degree of Licentiate. Returning home he followed the Bar; some time after, he was nominated Counsellor and Echevin: William prince of Orange made him Master of Requests.