The Crown Prince of Denmark is Frederik, Crown Prince of Denmark, born on May 26, 1968. He is the eldest son of Queen Margrethe II and Prince Henrik. As the heir apparent, he is expected to take on royal duties and represent Denmark at various events. Crown Prince Frederik is married to Crown Princess Mary, an Australian native, and they have four children. The royal family is involved in numerous charitable activities and initiatives, focusing on health, education, and social issues in Denmark and beyond.