What is "parraleta"

Parraleta is a red Spanish wine grape variety which might also be known under various other names, such as Tinta Caiada ( Alentejo, Portugal) in several Mediterranean countries. Parraleta is chosen as a prime name as it (old synonym Parrel) was used in Somontano, region located in the north-east Spain, which is its likely place of origin. DNA profiles of Tinta Caiada ( Alentejo, Portugal), and Carenisca ( Sardinia, Italy), and Salceño Negro ( Somontano, Spain) with that of Parraleta suggests that they are one and the same variety.