[All]: According to the chronology of Orkn this took place in April 1136 (Taylor 1938, 252), but Taylor (1938, 386) suggests that the episode is in fact another version of an incident in ch. 77 which also describes the sight of fifteen or sixteen men led by a bishop with a distinctive tonsure and which took place at Christmas in 1138. The st. is probably placed here because it seems to refer to Westray (Vestrey), but it has no obvious connection with either the preceding or the following events which are indeed located in Westray.