Trevejo Castle origin dates back to before the 12th century when a Muslim fortress stood in its place, serving as the basis for its construction in the 15th century. The original fortress was conquered by Alfonso VII of León, who handed it over to the Order of the Temple. In 1184, by order of King Fernando II of León, it passed into the hands of the Order of St. John of Jerusalem. Two years later, the same monarch decided to give it to the Order of Santiago. Over the course of history, it also came to belong to the Order of Alcántara.
During the French invasion of the peninsula, the castle was destroyed to prevent Spanish guerrillas from taking refuge in it.
Today, the homage tower and a large part of the wall still resist the passage of time. At the foot of the castle, there are a series of anthropomorphic stone tombs, allegedly containing the remains of some of the warrior monks who were initially owners of the castle.
The Jan Hus Memorial stands at one end of Old Town Square. The huge monument depicts victorious Hussite warriors and Protestants who were forced into exile 200 years after Hus, and a young mother who symbolises national rebirth. The monument was so large that the sculptor designed and built his own villa and studio where the work could be carried out. It was unveiled in 1915 to commemorate the 500th anniversary of Jan Hus' martyrdom. The memorial was designed by Ladislav Šaloun and paid for solely by public donations.
Born in 1369, Hus became an influential religious thinker, philosopher, and reformer in Prague. He was a key predecessor to the Protestant movement of the sixteenth century. In his works he criticized religious moral decay of the Catholic Church. Accordingly, the Czech patriot Hus believed that mass should be given in the vernacular, or local language, rather than in Latin. He was inspired by the teachings of John Wycliffe.