The Gesta Danorum (Books I-IX) on Hildiger
The Danish History, > Book Seven.
attestation: Alver's champion Hildiger, son of Gunnar, was secretly Halfdan's brother but concealed this
"Alver's soldier Hildiger, the son of Gunnar, challenged the champions of the Ruthenians to fight him; but when he saw that Halfdan was put up against him, though knowing well that he was Halfdan's brother"
attestation: Hildiger refused to fight Halfdan, claiming he was too untried, to protect their blood-bond
"he let natural feeling prevail over courage, and said that he, who was famous for the destruction of seventy champions, would not fight with an untried man"
attestation: Hildiger had destroyed seventy champions in his career
"he, who was famous for the destruction of seventy champions"
attribution: During a break in combat, Hildiger proposed they rest and converse, exchanging stories of their lineages
"It is pleasing to pass an hour away in mutual talk; and, while the sword rests, to sit a little on the ground and while away the time by speaking in turn"
attestation: Both brothers realized they shared the same mother Drota, making them half-brothers from different fathers
"brothers born of a shining race charge and bring death on one another; while they long for the height of power, they lose their days, and, having now received a fatal mischief in their desire for a sceptre, they will go to Styx in a common death."