Penafiel castle was built in the XIV century by Don Juan Manuel. This castle is notorious for its narrowness. Even though small, in this castle there was a fierce battle in which thousands of people died.
The shape of Penafiel resembles a ship. The mountain on which it was built is very narrow; thus the harness of building Penafiel.
Penafiel means "loyal rock" in Spanish. It is called this way because the castle has been very loyal throughout the centuries to Castile.
All the walls are very thick and tall. This castle was designed to be "unconquerable" and, according to many historians the gatehouse is probably the best one in Spain.