The son of Sigtrygg "Silkbeard" Olafsson, King of Dublin & York & Sláine Ingen Ní Briain is not Olaf the White.
cf Olaf the White: https://en.wikipedia.org/wiki/Olaf_the_White: 'His father was the Hiberno-Norse warlord Ingjald Helgasson.'
The son of Sigtrygg "Silkbeard" Olafsson, King of Dublin & York & Sláine Ingen Ní Briain is not Olaf the White.
cf Olaf the White: https://en.wikipedia.org/wiki/Olaf_the_White: 'His father was the Hiberno-Norse warlord Ingjald Helgasson.'