Synonym (also Ignam) for the grape variety Altesse; see there.
The white grape variety originates from France. The name means "highness" and derives from the hypothesis that it was introduced into France by a Savoyard prince. Synonyms are Altesse Blanche, Altesse Verte, Anet, Arin, Fusette, Fusette d'Ambérieu, Fusette de Montagnieu, Ignam, Ignan Blanc, Mâconnais, Marestel, Petit Mâconnais, Plant d'Altesse, Prin Blanc, Roussette, Roussette Basse, Roussette de Montagnieu, Roussette de Seyssel, Roussette Grosse, Roussette Haute, Roussette Petite and Serène Blanche. It must not be confused with the Furmint, Jacquère, Roussanne, Roussette d'Ayze or Viognier varieties,...
The glossary is a monumental achievement and one of the most important contributions to wine knowledge. Of all the encyclopaedias I use on the subject of wine, it is by far the most important. That was the case ten years ago and it hasn't changed since.Andreas Essl