Shakespeare used Gertrude
's mum, the queen of Denmark, so he seems to have associated it with northern Europe.
I find some of the entries in your 1796 list fascinating: Hierom, for instance, but not Jerome
. Strange! Rice I suppose is Rhys
. Could Benigma be Benigna
, if the printing is sometimes unclear? That would be less odd. As for Fortune
, Jacquet and Sisera ... who says the world hasn't improved?
I don't imagine the compiler of that list did original research as we would understand it: probably just liked names and noted them down when he encountered them. Nice chap!