Garcilaso de la Vega is best known for his tragic love poetry that contrasts the playful poetry of his predecessors. He seemed to progress through three distinct episodes of his life which are reflected in his works. During his Spanish period, he wrote the majority of his eight-syllable poems; during his Italian or Petrarchan period, he wrote mostly sonnets and songs; and during his Neapolitan or classicist period, he wrote his other more classical poems, including his elegies, letters, eclogues and odes. Influenced by many Italian Renaissance poets, Garcilaso adapted the eleven-syllable line to the Spanish language in his "sonetos" (sonnets), mostly written in the 1520s, during his Petrarchan period. Increasing the number of syllables in the verse from eight to eleven allowed for greater flexibility. In addition to the "sonetos", Garcilaso helped to introduce several other types of stanzas to the Spanish language. These include the "estancia", formed by eleven- and seven-syllable lines; the "lira", formed by three seven-syllable and two eleven-syllable lines; and "endecasílabos sueltos", formed by unrhymed eleven-syllable lines.