The white grape variety is a new breed between unknown parent varieties. Synonyms include Malvasia, Malvasia Branca de S Jorge, Malvasia de São Jorge and Malvazia. It is one of the many mostly unrelated varieties with name part Malvasia (look there). It was established by the breeder José Leão Ferreira de Almeida at the National Research Center near Lisbon Portugal bred. In the 1970s she was then on the island Madeira and was mainly grown in the eponymous municipality of São Jorge in the district of Santana on the north coast of the island. The high yielding vine is very prone to Botrytis, It produces acidic white wines, especially for the Madeira variety Malmsey be used. The acreage in 2010 was 110 hectares (Statistics Kym Anderson ).
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012