Rearranging the letters of 'The Memoirs of Giacomo Girolamo Casanova' gives:
Me? Oh I'm after a cosmic vaginal orgasm. Oooo!
(by David A. Green by hand) (2003)
Other related anagrams without their own page:
"The Venetian adventurer Giovanni Giacomo Casanova" -> "Ooh, 'suave' on a virgin, on a vacant dame, a teen-virgin, etc." (by Aronas Pinchas using Anagram Genius) (2007) (pending approval)
"Giacomo Girolamo Casanova de Seingalt" -> "So-acclaimed gigolo. Maestro on a vagina!" (by Tony Crafter using Anagram Genius) (2009) (pending approval)
"Giacomo Girolamo Casanova de Seingalt" -> "I am cast as an amoral Venice gigolo? Good!" (by Tony Crafter using Anagram Genius) (2008) (pending approval)