the principles of epic poetry enunciated by Aristotle in his Poetics, as he did the same to Horace's Ars Poetica. Almeida Garrett had participated in the 1820 Liberal Revolution, which caused him to exile himself in England in 1823 and then in France, after the Vila-Francada. While living in Great Britain, he had contacts with the Romantic movement and read authors such as Shakespeare, Scott, Ossian, Byron, Hugo, Lamartine and de Staël, at the same time visiting feudal castles and ruins of Gothic churches and abbeys, which would be reflected in his writings. In 1838, he presented Um Auto de Gil Vicente ("A Play by Gil Vicente"), in an attempt to create a new national theatre, free of Greco-Roman and foreign influence. But his masterpiece would be Frei Luís de Sousa (1843), named by himself as a "Romantic drama" and it was acclaimed as an exceptional work, dealing with themes as national independence, faith, justice and love. He was also deeply interested in Portuguese folkloric verse, which resulted in the publication of Romanceiro ("Traditional Portuguese Ballads") (1843), that recollect a great number of ancient popular ballads, known as "romances" or "rimances", in redondilha maior verse form, that contained stories of chivalry, life of saints, crusades, courtly love, etc. He wrote the novels Viagens na Minha Terra, O Arco de Sant'Ana and Helena. Alexandre Herculano is, alongside Almeida Garrett, one of the founders of Portuguese Romanticism. He too was forced to exile to Great Britain and France because of his liberal ideals. All of his poetry and prose are (unlike Almeida Garrett's) entirely Romantic, rejecting Greco-Roman myth and history. He sought inspiration in medieval Portuguese poems and chronicles as in the Bible. His output is vast and covers many different genres, such as historical essays, poetry, novels, opuscules and theatre, where he brings back a whole world of Portuguese legends, tradition and history, especially in Eurico, o Presbítero ("Eurico, the Priest") and Lendas e Narrativas ("Legends and Narratives"). His work was influenced by Chateaubriand, Schiller, Klopstock, Walter Scott and the Old Testament Psalms. António Feliciano de Castilho made the case for Ultra-Romanticism, publishing the poems A Noite no Castelo ("Night in the Castle") and Os Ciúmes do Bardo ("The Jealousy of the Bard"), both in 1836, and the drama Camões. He became an unquestionable master for successive Ultra-Romantic generations, whose influence would not be challenged until the famous Coimbra Question. He