“In January 1548 William Grindal, tutor to Princess Elizabeth and Ascham’s dear friend, died of plague. Ascham comforted Elizabeth in a letter of 22 January 1548 and recommended a kinsman of Grindal as replacement. Elizabeth, despite the opposition of her stepmother Katherine Parr and of Thomas Seymour, insisted that the vacant tutor’s place go to Ascham. She had her way and Ascham immediately joined the household at Chelsea. He contrived a classical and Christian curriculum for the princess that was designed to equip her for a leading role in the state. In the morning they studied Greek (the New Testament as well as classical authors, such as Sophocles, Isocrates, and Demosthenes), and in the afternoon Cicero and Livy and the early fathers such as St Cyprian. With her he pioneered his method of teaching languages by double translation, which he was to make famous in The Scholemaster. He also taught calligraphy to Elizabeth, her brother, Edward, and Henry and Charles Brandon; it is possible that Lady Jane Grey shared this instruction. A letter of this time to Kate Astley (or Ashley), Elizabeth’s governess, presages Ascham’s later views on the need to approach the education of the precocious with care: ‘The younger, the more tender; the quicker, the easier to break… and so her grace… by little and little, may be increased in learning’ (Ascham, Works, 1.86). (..)
Ascham maintained his connection with Elizabeth throughout her sister’s reign. (..) Ascham studied with her and, as he recounted to Sturm, was amazed by her erudition, linguistic skills, and political understanding.”
O'Day, Rosemary. "Ascham, Roger (1514/15–1568), author and royal tutor." Oxford Dictionary of National Biography.