The chronology of Thorfinn's life is problematic, and he may have had a share in the Earldom of Orkney while still a child, if he was indeed only five in 1014.
Kronologi kehidupan Torfinn bermasalah, dan ia mungkin memiliki bagian di Earldom Orkney saat masih bocah, jika ia memang baru berusia lima tahun pada tahun 1014.