Single Comment

Fergus, my objections were, to a great extent, pro forma. But the fact is
that my variant is deliberately named 'Grand' to refer to Mr.
Freeling's game, and I made that clear in my write-up. I deliberately
copied the setup to solve the problems I felt existed with my 10x8 variant
because I think the Grand Chess board and setup is an elegant solution to
those problems. What I didn't want was people to see presets for Grand
Shatranj and think: 'Oh, great, here's some idiot that didn't get the
message, even though it's in black and white' (even though on my machine
it's in black lettering on a grey background). 
Wow, there are several messages here, while I'm typing this - sorry,
Fergus, saw your comment between my answer to christine and edited it to
name her rather than have it look like a reply to your comment (this is
getting convoluted).
Okay, back to the original topic. Whatever that was. I truly don't see a
problem with naming something after something else under these
conditions:
1) with appropriate permission;
2) if even the direct descendants of the inventor are unaware they are the
heirs. In this case, they can't come after you. :-) Okay, if the origins
of the name are lost in antiquity might be a better rule.
Gary, if it was good enough, and it followed #1 & 2 above well, heck, do
it - you playtested Grand Shatranj I enough! And thanks for that.
And, finally, Christine, no, I'm just a plodder with no creativity...