Frederik, Crown Prince of Denmark, was born on May 26, 1968. He is the eldest son of Queen Margrethe II and Prince Henrik. As the heir apparent, he is involved in various official duties and represents Denmark at international events. Crown Prince Frederik is married to Crown Princess Mary, an Australian native, and they have four children. He is known for his interest in sports, particularly sailing and running, and is also engaged in charitable work, focusing on health, education, and sustainability initiatives.