The origins of this ancient breed have been somewhat lost. Believed to have been evolved from the Mastiff type dogs brough to the Iberian Penisular by the Romans. Bred as a mountain herding dog able to hold of wolves and bears
The Estrela is known for its courage, intelligence, calmness, determination, reliability, loyalty, and patience and gentleness with children. This makes the Estrela an excellent guard and wonderful family pet. They can be known to be head strong and challenging to train.