Short answers, pulled from the story.
Frederick II of Denmark was born on the 1st of July 1534 inside Haderslevhus Castle. His father Christian III had just become King of Denmark three days earlier after winning the Count's Feud civil war.
Frederick II of Denmark struggled terribly with reading and spelling due to heavy dyslexia while attending school at age seven in 1541 under Hans Svenning. Contemporaries perceived him as unlettered and illiterate despite his intelligence, leading both parents to keep him under the watchful eye of knowledgeable men.
Frederick II of Denmark died at Antvorskov near Slagelse which served as his favorite hunting-castle. The script does not specify an exact date for his death but notes he died there after a reign ending in 1588.
Tycho Brahe was a Danish astronomer who rose to international renown through Frederick II of Denmark fascination with alchemy and astrology. Frederick granted Brahe the island Ven as a fief where he built the observatory Uraniborg from 1576 until expulsion by Christian IV in 1597.
Frederick II of Denmark married Sophie of Mecklenburg-Güstrow on the 20th of July 1572. They had seven children including Elizabeth Anne Christian IV Ulrik Augusta Hedwig and John.