On this day, 447 years ago, on August 4, 1578 (July 2, 1578 in the lunar calendar), King Sebastiao of Portugal drowned in the Mahazan River. Sebastiao I? o(January 20, 1554-August 4, 1578, 441 years ago), born in Lisbon, was the 16th King of Portugal and the grandson of João III. The only son of Juana, daughter of Prince João and Charles V. Because his father died prematurely two weeks before his birth, he became the successor to the throne of Portugal, and he inherited the throne three years later. When he was an infant, he was regent by his grandmother, Katrina, who belonged to the Habsburg Dynasty in Spain, and after 1652, by his great-uncle, Cardinal Enrique, Duke of Evora. During this period, the Portugal Empire expanded to Angola, Mozambique, Malacca and Macau. In his childhood, he was deeply influenced by the Jesuits, was a mystic, and once tried hunting and fasting for long periods of time. He was physically and mentally ill and rarely involved in political affairs, indulging in the dream of occupying and expanding Christianity all day long. He believed he would become a commander in chief who conquered African Muslims in the name of Jesus. His top priority was the occupation of Morocco. He took power in 1568. Shortly after his own expedition, and without any children, he embarked on a holy war against Fes in Morocco. Philip II of Spain refused to participate in the war and postponed his daughter's marriage to Sebastiao. His first attack on Morocco in 1574 failed, but his enthusiasm remained unabated. In the summer of 1578, he prepared an invading army that lacked combat effectiveness, was lax in discipline, and was disorganized. He joined forces with the deposed Sudan Mohammed Mutewakil of Morocco to lead the army to land in Tangier. He refused to take his men's advice and went deep into enemy territory alone. On August 4, AlQuasral-kibr and Morocco Sudan Abdul Malik I fought the most painful battle in Portugal's history near the Mahazan River. Although the Morocco army was slightly less equipped, its attack was very fierce. The Portugal army led by Sebastiao had to retreat. He drowned while crossing the Mahazan River. He was 24 years old. Abdullah Malik I also died of serious illness the next day. This war was historically known as the "Battle of the Three Kings". Comment on the legendary figure in the eyes of Portugal patriots, the "sleeping king."