AbstractThat Wales is indebted to Italian Renaissance grammarians is known to all who have read the Welsh Grammar that Dr. Gruffydd Robert, the learned confessor of that Cardinal Borromeo who was later to be San Carlo, began to publish at Milan in 1567. That a compatriot of Robert's, Dr. Sion Dafydd Rhys, made prompt repayment in 1569, in a contribution to the study of the Italian language, is equally a fact, but one much less widely diffused. Nor is this strange: for while a facsimile edition of the former scholar's Gramadeg Cymraeg has been published by the University of Wales Press, with an introduction of 150 pages by Professor G. J. Williams, the latter's De italica pronunciatione et orthographia libellus is difficult to come by and has received no tribute other than Trabalza's wholly enthusiastic but rather unsatisfactory three and a half pages in his storia della grammatical italiana.