[4] hefnir Skjalgs ‘avenger of Skjálgr [= Erlingr]’: It is stated in Rǫgnvalds þáttr ok Rauðs that Erlingr’s father Þórólfr skjálgr was killed in an arson attack, but there is no record of any vengeance by Erlingr, who is said to have been a child at the time (ÓT 1958-2000, I, 316-18).