[PAR] [TLE] Olaf Geirstad-Alf [SEP] Olaf Gudrødsson, or as he was named after his death Olaf Geirstad-Alf (Old Norse Ólaf Geirstaða Álfr), was a legendary Norwegian king of the House of Yngling from the "Ynglinga saga".  He was the son of Gudrød the Hunter and according to the late "Heimskringla", the half-brother of Halfdan the Black.  Gudrød and Olaf conquered a large part of Raumarike. [PAR] [TLE] Halfdan the Black [SEP] Halfdan the Black (Old Norse: "Halfdanr Svarti") (  810 –  860 ) was a ninth-century king of Vestfold.  He belonged to the House of Yngling and was the father of Harald Fairhair, the first king of Norway.
[PAR] [TLE] Olaf Geirstad - Alf [ SEP ] Olaf Gudrødsson , or as he was named after his death Olaf Geirstad - Alf ( Old Norse Ólaf Geirstaða Álfr ) , was a legendary Norwegian king of the House of Yngling from the " Ynglinga saga " . He was the son of Gudrød the Hunter and according to the late " Heimskringla " , the half - brother of Halfdan the Black . Gudrød and Olaf conquered a large part of Raumarike . [PAR] [TLE] Halfdan the Black [ SEP ] Halfdan the Black ( Old Norse : " Halfdanr Svarti " ) ( 810 – 860 ) was a ninth - century king of Vestfold . He belonged to the House of Yngling and was the father of Harald Fairhair , the first king of Norway .
In what century did Olaf Geirstad-Alf  and Halfdan the Black live in?
In what century did Olaf Geirstad - Alf and Halfdan the Black live in ?
ninth-century
ninth-century