He came to England in Edward VI's reign, about 1548; and was entertained first by Paul Fagius and Martin Bucer and afterwards by Archbishop Thomas Cranmer, with whom he stayed for more than a year.
He was pensioned by Cranmer and Thomas Goodrich, bishop of Ely, and married Elizabeth de Grimecieux, Tremellius's stepdaughter, on 1 December 1550.
Cranmer recommended Chevallier to the king's notice, and he was granted letters of denization and the reversion to the next vacant prebend at Canterbury.
[1] On Edward VI's death in 1553 Chevallier left for Strasbourg, where he was appointed Hebrew professor in 1559, but moved in the same year to Geneva and confirmed his intimacy with John Calvin, whose acquaintance he had made before 1554 Ultimately he settled at Caen, and in 1568 revisited England to solicit Queen Elizabeth's aid for the French Huguenots.
At the time of the St. Bartholomew's massacre in Paris he escaped to Guernsey, intending to return to England, but died there in October of the same year.