Satine Kryze, Duchess of Mandalore, was introduced in Star Wars: The Clone Wars episode "The Mandalore Plot".
It is revealed during the Mandalore storyline that Obi-Wan Kenobi had fallen in love with Satine while stationed on Mandalore as a Padawan with Qui-Gon Jinn. Obi-Wan indicates that he would have given up the Jedi Order if she only said the word.
Ewan MacGregor, who played Ob-Wan Kenobi in Episodes 1, 2, and 3 (although he was not the voice actor during The Clone Wars), also played Christian, the writer and protagonast and love interest of Satine in the Baz Luhrmann movie "Moulin Rogue!".
Did the production team of Star Wars: The Clone Wars name Obi-Wan's (apparent) only love as a reference to Satine in "Moulin Rouge!"?