This article is from the Tom Holt FAQ, by Nick Boalch email@example.com with numerous contributions by others.
Belsambar has pointed out that the Flying Dutchman appears in "Flying
Dutch" as Julius Albert Vanderdecker, but cameos in "Faust among Equals" as
Cornelius Vanderdecker. Apparently Tom didn't notice this one either.
Additionally, as you can see from section 2.2.1, the back cover blurb from
the book also has the poor man down as Cornelius Vanderdecker. Rereading,
I notice that his name even changes about inside the book; cf. "You really
ought to write to your uncle, Cornelius" in chapter nine.