Petrarchan sonnet Italian sonnet form in the poems of his that were not translation and adaptation work. As a result, he is often credited for integrating the Petrarchan sonnet into English vernacular tradition. The form also gave rise to an "anti-Petrarchan" convention which may have revealed the mistress to be ugly and unworthy. The convention was also mocked, or adopted for alternative persuasive means by many of the Inns of Court writers during the Renaissance. The sonnet is split in two groups: the "octave" (of 8 lines) and the "sestet" (of 6 lines), for a total of 14 lines. The octave (the
Caudate sonnet is one of many in which Hopkins experimented with variations on sonnet form. However, unlike the curtal sonnet, a Hopkins invention which is a 10½-line form with precisely the same proportions as a Petrarchan sonnet, his caudate sonnet is a full sonnet unmodified but with an extra six lines. Hopkins heightens the effect of the extension with an enjambment from the 14th line to the 15th. Hopkins explored the possibility of such a coda in a series of letters exchanged with Robert Bridges, from whom he learned of the centrality of Milton's example in the form. Though the intent of