A sonnet is one of several forms of poetry that originate in Europe, mainly Provence
Provence ; Provençal: Provença in classical norm or Prouvènço in Mistralian norm) is a region of south eastern France on the Mediterranean adjacent to Italy. It is part of the administrative région of Provence-Alpes-Côte d'Azur...

 and Italy
Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

. A sonnet commonly has 14 lines. The term "sonnet" derives from the Occitan word sonet and the Italian word sonetto, both meaning "little song" or "little sound". By the thirteenth century, it signified a poem of fourteen lines that follows a strict rhyme scheme
Rhyme scheme
A rhyme scheme is the pattern of rhyme between lines of a poem or song. It is usually referred to by using letters to indicate which lines rhyme. In other words, it is the pattern of end rhymes or lines...

 and specific structure. Conventions associated with the sonnet have evolved over its history.