The red grape variety comes from Portugal. Synonyms are Parreira Mathias and Parrilha. According to DNA analyses carried out in 2015, it is probably a natural cross between Alfrocheiro x Airén. However, this is based on only 21 DNA markers (see molecular genetics). The variety is grown in very small quantities in the Ribatejo region. In 2010 a scarce hectare was designated (Kym Anderson).