Raimon Vidal de Bezaudun
...that 12th-century troubadour Raimon Vidal de Bezaudun wrote a grammatical manual for Occitan poetry that influenced Dante Alighieri's De Vulgari Eloquentia, justifying the use of Italian vernacular?
...that 12th-century <a href="./Troubadour" id="mwAjI" rel="mw:WikiLink" title="Troubadour">troubadour</a> <b id="mwAjM"><a href="./Raimon_Vidal_de_Bezaudun" id="mwAjQ" rel="mw:WikiLink" title="Raimon Vidal de Bezaudun">Raimon Vidal de Bezaudun</a></b> wrote a grammatical manual for <a href="./Occitan_language" id="mwAjU" rel="mw:WikiLink" title="Occitan language">Occitan</a> poetry that influenced <a href="./Dante_Alighieri" id="mwAjY" rel="mw:WikiLink" title="Dante Alighieri">Dante Alighieri</a>'s <i id="mwAjc"><a href="./De_vulgari_eloquentia" id="mwAjg" rel="mw:WikiLink" title="De vulgari eloquentia">De Vulgari Eloquentia</a></i>, justifying the use of <a href="./Italian_language" id="mwAjk" rel="mw:WikiLink" title="Italian language">Italian vernacular</a>?