Alexandrine introduce phrasal accentuation, or rigorously observe the medial caesura, as in French." Common usage within the literatures of European languages is broader still, embracing lines syllabic, accentual-syllabic, and (inevitably) stationed ambivalently between the two; lines of 12, 13, or even 14 syllables; lines with obligatory, predominant, and optional caesurae. Although alexandrines occurred in French verse as early as the 12th century, they were slightly looser rhythmically, and vied with the "décasyllabe" and "octosyllabe" for cultural prominence and use in various genres. "The alexandrine came into its own in the middle of the sixteenth century with the poets of the Pléiade
Metre (poetry) syllable types, a total of sixteen different types of poetic foot—the majority of which are either three or four syllables in length—are constructed, which are named and scanned as follows: These individual poetic feet are then combined in a number of different ways, most often with four feet per line, so as to give the poetic metre for a line of verse. Some of the most commonly used metres are the following: Portuguese poetry uses a syllabic metre in which the verse is classified according to the last stressed syllable. The Portuguese system is quite similar to those of Spanish