A brief look at some of the myth and legends of Denmark. This just a sample of the rich mythology that Denmark has. Personally, it's always interesting to read different countries legends and learning about them. Denmark's legends as you will notice co-mingle with Beowulf, kings, and other heroes.
Birkabegn was a legendary king of Denmark and he's also known as the father of Havelock. Heorot was the palace of the Hrodgar. Godard, was the man who stole the throne from Bikabegn and had ordered Havelock killed. Another king figure that was more gruesome was Ellerkonge, who was known as an alder-king and in the legends about him, it has been said that he would tried to abduct children to the underworld.
Looking at some of the lore that deals with Beowulf: The Grandfather of Beowulf was Hredel, he was a king of the Geats. Another interesting figure that is part with Beowulf is Wiglaf, he was Beowulf's follower and he was the only one who had been there after everyone ran when a Dragon attacked the area. So with that, Beowulf had given him his honor for his bravery. Aeschere was a victim of Grendel and had been the counselor of Hrothgar.
Skogsnufa was known as a female woodland spirit and Yngona, in myths is a goddess. Puge in myth is a mischievous goblin. Colbrand was an giant who was killed by Guy of Warick. Back to legendary heroes, Marsk Stig was an hero in lore and so was Niels Ebbeson, they both had fought to get rid of foreign oppression on their country.
Since this is a brief look I hope it may have sparked some interest and to explore of Denmark's myths and legends. If you get that spark besides the internet, the local library and bookstore may be good places to find books about these legends.