Buzz Aldrin Divorce -- We Used To Hang with Kings and Queens!

She kicked it with Queen Elizabeth ... Elton John ... King Juan Carlos and Obama -- but Buzz Aldrin's estranged wife claims she ain't about to give up her super-fancy lifestyle just because she's getting divorced.

Lois Driggs Cannon has filed new court documents -- demanding Buzz fork over at least $25k per month so she can continue to live the same "comfortable lifestyle" she enjoyed with Buzz.

And what does a "comfortable lifestyle" consist of, you ask??? Lois claims ...

-- They traveled to Asia, Australia, South Africa and Antarctica together
-- They attended Elton John's Academy Awards party
-- Annual 2-week ski vacation in Sun Valley, Idaho
-- Annual 2-week beach vacation in St. Tropez and Monaco
-- They lived in a fancy L.A. condo with views of the ocean
-- They attended social/celeb events in L.A. 3-5 times per week
-- They threw fancy parties at their home 2-3 times per year
-- Often attended Cannes Film Festival
-- Often went to the Ascot Racecourse in England

Lois also says she's met multiple U.S. presidents and "most of the royalty around the world" ... and she doesn't want to give up that lifestyle.

But here's the thing -- even if Buzz forks over the cash ... who wants to meet Lois without the MOON MAN by her side???