In 1223, King Rognvald sent a letter to his son commanding him to murder his uncle Olaf.
1223年， 罗格瓦尔德国王致信他的儿子，命令他谋杀他的叔叔奥拉夫。
TED-Ed（视频版）
After Rognvald's death several years later, people realized the letter ordering the attack might have been forged.
几年后 Rognvald 去世后，人们意识到下令袭击的信件可能是伪造的。
TED-Ed（视频版）
After Rognvald’s death several years later, people realized the letter ordering the attack might have been forged.
几年后 Rognvald 去世后，人们意识到下令袭击的信件可能是伪造的。
英语百科
Rognvald
Ragnvald or Rognvald is an Old Norse name (Old Norse Rǫgnvaldr, modern Icelandic Rögnvaldur; in Old English Rægnald and in Old Irish, Middle Irish Ragnall). Notable people with the name include: