LEÃO, Duarte Nunes de.- ORTHOGRAPHIA | DA LINGOA | PORTVGVESA. | Obra vtil, & necessaria, assi pera bem screuer a lingoa | Hespanhol, como a Latina, & quaesquer outras, | que da Latina teem origem. | ¶ Item hum tractado dos pontos das clausulas. | Pelo Licenciade Duarte Nunez do Lião.- Em Lisboa: Per Ioão de Barreira, 1576.- [4], 78 f.; 19 cm.- E. 16th century work of great importance for the knowledge of the evolution of the Portuguese language, whose author (1530-1608), a scholarly historian, born in Évora, in addition to grammatical, orthographic and lexicographical aspects, sometimes controversial, develops a text full of the erudition that characterizes him as a Renaissance Man. Duarte Nunes, a law graduate and judge of the Casa da Suplicação (Supreme Court of the Kingdom of Portugal at the time), on the death of Cardinal King D. Henrique, warmly embraced the cause of Filipe II of Spain, whose right to succession he defended in writing against those who challenged him. The copy, slightly trimmed, but complete and solid, presents, bound at the end, a group of 150 leaves corresponding to the (complete) text of the original edition of "Origem da língua portuguesa", by the same author, published in Lisbon, in 1606, only missing the eight preliminary pages, including the title page. Scarce marginal wormholes. Title page with trimmed initials (from the period) and monogrammatic stamp of the House of Palmela; ownership of the first half of the 19th century(?) on the back cover: "De João de Sousa Pinto de Magalhães". Eighteenth-century full flecked sheepskin binding, retaining the original endpapers. Inocêncio, II, p. 210. Samodães, 2244. BN, (16th century), 410. D. Manuel II Library, 246.