The son, whom he had by her in 1690, was born unhappily with the disposition of his mother, and that disposition received additional strength from his very first education. My memoirs say, that he was entrusted to the care of superstitious men, who ruined his understanding for ever. 'Twas in vain that they hoped to correct these first impressions, by giving him foreign preceptors; their very quality of being foreigners disgusted him. He was not born destitute of genius; he spoke and wrote German well; he had a tolerable notion of designing, and understood something of mathematics: but these very memoirs affirm, that the reading of ecclesiastical books was the ruin of him. The young Alexis imagined he saw in these books a condemnation of every thing which his father had done. There were some priests at the head of the malcontents, and by the priests he suffered himself to be governed. They persuaded him that the whole nation looked with horror upon the enterprises of Peter; that the frequent illnesses of the czar promised but a short life; and that his son could not hope to please the nation, but by testifying his aversion for all changes of custom. These murmurs, and these counsels, did not break out into an open faction or conspiracy, but every thing seemed to tend that way, and the tempers of the people were inflamed. Peter's marriage with Catherine in 1707, and the children which he had by her, began to sour the disposition of the young prince. Peter tried every method to reclaim him: he even placed him at the head of the regency for a year; he sent him to travel; he married him in 1711, at the end of the campaign of Pruth, to the princess of Brunswick. This marriage was attended with great misfortunes. Alexis, now twenty years old, gave himself up to the debauchery of youth, and that boorishness of ancient manners he so much delighted in. These irregularities almost brutalized him. His wife, despised, ill-treated, wanting even necessaries, and deprived of all comforts, languished away in disappointment, and died at last of grief, the first of November, 1715. She left the prince Alexis one son; and according to the natural order, this son was one day to become heir to the empire. Peter perceived with sorrow, that when he should be no more, all his labours were likely to be destroyed by those of his own blood. After the death of the princess, he wrote a letter to his son, equally tender and resolute: it finished with these words: 'I will still wait a little time, to see if you will correct yourself; if not, know that I will cut you off from the succession, as we lop off a useless member. Don't imagine, that I mean only to intimidate you; don't rely upon the title of being my only son; for if I spare not my own life for my country, and the good of my people, how shall I spare you? I will rather choose to leave my kingdom to a foreigner who deserves it, than to my own son, who makes himself unworthy of it.'