For the youngsters who don't know history...
From Dungeon Module B1: In Search of the Unknown. Zelligar was a great wizard, and (with Rogahn, a powerful fighter) creator of Quasqueton, their stronghold in the wilderness. Which (after they abandoned it) naturally became home to all sorts of nasty creatures, as these things tend to in D&D.
This adventure was the first one I ever ran. It came with the edition of D&D that I started with (Holmes blue book). Since I learned to DM partially from this adventure, I thought it was fitting that, in a sense, I was an apprentice to Zelligar.
Besides, it sounds neat.
NOTE: My avatar is an illustration from that adventure.