Given the question: Facts: - issue: haakon magnusson of norway - regent: olaf iii -lrb- from 1067 -rrb- - type: monarch - succession: king of norway - reign: 1066 -- 28 april 1069 - successor: olaf iii - mother: tora torbergsdatter - predecessor: harald iii - death date: 28 april 1069 -lrb- aged 19 -- 21 -rrb- - house: house of hardrada - father: harald iii of norway - birth date: c. 1048 - name: magnus haraldsson - death place: nidaros , norway - religion: catholicism Based on these bullet points, write a short biography describing the life of magnus ii of norway .
The answer is:
magnus haraldsson -lrb- old norse : '' magnus haraldsson '' ; c. 1048 -- 28 april 1069 -rrb- was king of norway from 1066 to 1069 , jointly with his brother olaf kyrre from 1067 .he was not included in official norwegian regnal lists until modern times , but has since been counted as magnus ii .a son of king harald hardrada , magnus was in 1058 appointed nominal leader of an expedition into the irish sea while still only a child .he appears to have assisted welsh ruler gruffydd ap llywelyn and lfgar , earl of mercia in their struggles against the english , although his primary objective may have been to assert control over orkney .he later accompanied his father in harald 's campaign against denmark in 1062 , and was appointed regent and made king before harald 's fatal invasion of england in 1066 .magnus briefly ruled norway alone thereafter , until his younger brother olaf returned from england in 1067 .magnus co-ruled with olaf following his brother 's return to norway , but less than three years into his reign , magnus became ill and died .his kingship has been downplayed in later history in part due to this .magnus had only one child , haakon toresfostre who was king briefly after olaf , but who also died young , and without issue .