Obsolete [or erroneous?] spelling in one of the manuscripts of the 31st sonnet of the cycle »Il Saporetto« by Simone de Prodenzani (ca. 1351-1438); ➺ Sapognia !
Sources
Web
Wikipedia (NB¹ [German version only]: »Simone de Prodenzani); NB²: The name of the author of the original source is either spelt (Simone [de]) Prodenzani or Prudenzani (➺ Cecchola)