Orm of Jutland heard the witch prophecy..."
-Poul Anderson, quoted in Lin Carter, "A Changeling In Elfland" IN Poul Anderson, The Broken Sword (London, 1977), pp. 5-9 AT p. 5.
""There was a man called Orm the Strong..."
-The Broken Sword, Chapter I, p. 15.
The first quotation must be the opening phrase of the earlier version of the novel.
One meaning of "orm" is "snake." There is a Lancashire town called Ormskirk:
The name 'Ormskirk' is Old Norse in origin and is derived from Ormres kirkja, from a personal name, Ormr (which means "serpent" or dragon), and the Old Norse word kirkja for church. Ormr may have been a Viking who settled here, became a Christian and founded the church but there are no other records or archaeological evidence to support this and Ormr's identity is unknown.
-copied from here.
The image shows a contemporary street market in Ormskirk.