Oh, Madame de Pompadour. We hardly knew ye. Literally. Although her love affair with the Tenth Doctor lasted her entire lonely life, it only escalated over a matter of days for our beloved hero who visited her at various points via sporadic time windows that had been created by the Clockwork Droids. You really had to be there. Still, it didn't diminish the emotional power of her eventful death, however, as she parted ways with her soulmate through the form of a heartfelt letter from beyond the grave. His face said it all. Form an orderly line for hugs, people.