 The Manx Sword of State , a ceremonial sword used at the annual Tynwald Day sittings at St John 's , Isle of Man , and whenever the Tynwald sits at the Legislative Chambers in Douglas , Isle of Man , is popularly said to have belonged to Óláfr . The sword , which has a 29 in ( 74 cm ) steel blade and 9 in ( 23 cm ) inch hardwood hilt , is sometimes said to have been brought back from Spain when Óláfr returned from his pilgrimage to Santiago de Compostela ; however , recent analysis of the sword has determined that it dates no earlier than the 15th century , and that the blade dates only to the 17th century . The current understanding is that the sword itself was made for the Tynwald meetings of 1417 or 1422 . 
