Sestina

• 6 stanzas of 6 lines apiece with an envoi (final stanza) of 3 lines
• same 6 end words occur in each stanza but in a different order according to a fixed pattern

Example: "Ye Goatherd Gods" (Sidney)

Strephon. 
Ye Goatherd gods, that love the grassy mountains,
Ye nymphs which haunt the springs in pleasant valleys,
Ye satyrs joyed with free and quiet forests,
Vouchsafe your silent ears to plaining music,
Which to my woes gives still an early morning,
And draws the dolor on till weary evening.

Klaius.
O Mercury, foregoer to the evening,
O heavenly huntress of the savage mountains,
O lovely star, entitled of the morning
While that my voice doth fill these woeful valleys,
Vouchsafe your silent ears to plaining music,
Which oft hath Echo tired in secret forests.