Thomas Sébillet

Thomas Sébillet (1512–1589) was a French jurist and grammarian. He is now remembered for his Art Poétique from 1548, on French verse. He was strongly contradicted later by Joachim du Bellay, whose art poétique became normative. This "decapitation of richesse" lead to a centralisation of language, too (additionally to the concentration of political power)