An Amusing Little Quiz for Jack Vance Fans

I stumbled by mistake across the following:

http://boards.straightdope.com/sdmb/archive/index.php/t-597375.html

A poster with the energetic name of Rocketeer proposes the following quiz:
An amusing little quiz for Jack Vance fans

1. Name the five Demon Princes.

2. Name the four alien races (not counting humans) on Tschai.

3. Who sent Cugel the Clever far away across the Dying Earth?

4. Who was Zap210?

5. In what novel did a travelling showman, owner of a tattered tabard, become involved in a dynastic struggle?

6. In what novel did stranded Earthmen ride the monoline?

7. Name the Galactic Effectuator.

8. Extra credit: name three of Kirth Gersen’s romantic interests.

I would hold my fansmanship of Jack Vance to be merely nuncupatory were I unwilling to answer. I neither used internet nor turned toward my extensive bookshelf of Vanceania for reminders. This is based on raw memory alone.

Fellow Vance fans! I invite you to join me without looking below the cut, where I place both my answers and then the real answers.

Warning: I assume I have spelled each and every name wrong. This is just my memory without looking at anything or using any reminders.

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