Assuming a girl since the male-sounding Daedric Princes are crazy names
Most likely: Azura, Meridia, or Namira
Less likely: Boethiah, Mephala, Vaermina
Unlikely but I hope: Sheogorath, Sanguine, Clavicus Vile
"Skyrim is 15 years old" is already a crazy stat, but if you want it even more put into perspective I encountered an 8th grader named after a Daedric Prince at work today.