The favourable situation of Portugal could not fail to contribute in a considerable degree to the early developement of the Portuguese tongue. While the Castilians descending from their mountains, obtained no increase of wealth until they wrested it sword in hand from the Arabs, the Portuguese, particularly after they recovered possession of Lisbon, enriched themselves by the peaceful pursuits of trade and navigation. Lisbon soon became a flourishing commercial city; and the nation learned to unite civic industry with warlike achievements. The Portuguese, generally speaking, acquired a degree of practical dexterity which even to this day seems to distinguish them from the Spaniards, and which indeed is not sufficiently valued by the enemies of the Portuguese name, amongst whom must be more particularly included their Castilian neighbours. The benefits of civil industry, which were widely diffused from Lisbon, fortified in the Portuguese that feeling of self-esteem, which was necessary for the maintenance of their independence on so small a territory. In the reign of Alphonso I. the son of Henry of Burgundy, the Portuguese dominions acquired nearly their present extent by conquests made from the Moors, as far as the Algarvas. The romance dialect of Portugal now advanced southward into the conquered districts, and thus acquired the dignity of a prevailing national language, the formation of which proceeded from a great capital. GONZALO HERMIGUEZ AND EGAZ MONIZ. These circumstances may serve to explain how two Portuguese poets came to be celebrated at so early a period as the reign of Alphonso I. in the twelfth century. One of these poets is Gonzalo Hermiguez, and the other Egaz Moniz; two knights descended from the most distinguished families of the country. The verses of these ancient bards which have been preserved, are not wholly intelligible even to natives of Portugal.[5] But though their meaning can only be partially conjectured, they nevertheless merit attention; for no Spanish cancion of that age, by any known author, now exists; and in these oldest records of Portuguese poetry, the germ of the common character and metrical form of the national songs of Spain and Portugal is plainly discernible. Gonzalo Hermiguez and Egaz Moniz wrote no rhymed chronicles or legends. They did not even compose in the Provençal metres. Their lyric effusions, which are popular songs in the proper sense of the term, are composed in short trochaic verses, precisely in the style of the well-known Spanish and Portuguese ballads of the fifteenth centuries. In the verses of Hermiguez scarcely any regular measure is discernible.[6] But Egaz Moniz exhibits precisely that metrical form, for which, during some succeeding centuries the Portuguese and the Spaniards manifested a particular predilection.[7]