Christian was the son of Frederick II, king of Denmark-Norway, and Sofie of Mecklenburg-Schwerin. He was born at Frederiksborg castle in 1577. He succeeded the throne at 11, when his father died on 4 April 1588. While he was still growing up, chancellor Niels Kaas and the "Rigsraadet" council served as helpers of the royal power. He received a good education. He was a strong-willed and clever student. At the age of 18, Christian became king on 17 August 1596.