Sir Peter Legh's only son, who bore his own baptismal appellation, was born at Clifton, near Halton Castle, a seat of the Savages, on the 4th of June, 1415, the eve of the father's departure to engage in the contest at Agincourt, and had therefore just completed his seventh year. When his mother remarried he was removed from Clifton and brought up in the household at Croxteth, where, in addition to his mother's guardianship, he had the advantage of the friendly interest and supervision of the head of the great Lancashire house of Molineux. In 1426 his grandmother, Margaret, D'Anyers, settled a portion of her Cheshire estates upon him, and the remainder, including Lyme, he succeeded to on her death, June 24, 1428. He had then, at the early age of thirteen, become the owner of large territorial estates, and for the better protection of the fair patrimony that had come to him his stepfather in the same year obtained the custody of all his lands in Cheshire until he should be of age, as well as the right of contracting him in marriage, a right he exercised by covenanting to marry him to his own daughter, Margaret, whom he had had by his first wife, Ellen, daughter of Sir William Haryngton, of Hornby. The year 1432 saw the contract carried into effect and the betrothed couple united. Doubtless it was a season of bustle and business, and we may suppose the stately halls of Croxteth to have been crowded with a gay company assembled to witness and do honour to the espousals of the young people.