Best case scenario your body is left alone in a tomb never to be disturbed. Worst case is you get your flesh boiled, bones paraded and later on gets sent to different European noble houses and holy orders.
OK LIED. THAT ISN'T THE WORST CASE.
You'd better not end up like Saint Elizabeth of Thuringia who tragically died young. The people wanted to witness her final moment, went crazy, broke through the door to mourn her. Her dead body was divided; hair and cloth and even fingers. One crazy freak even stole her nipple. Swedish invaders later on stole her skull and it's still in their museum today.
This tended to be a catholic thing in medieval Europe. In Catholicism miracles can be attributed to holy figures (dead or alive) so upon death people would steal body parts of the deceased holy figure in hopes of inciting miracles. At one time the church would even sell body parts of venerated figures.
OK LIED. THAT ISN'T THE WORST CASE.
You'd better not end up like Saint Elizabeth of Thuringia who tragically died young. The people wanted to witness her final moment, went crazy, broke through the door to mourn her. Her dead body was divided; hair and cloth and even fingers. One crazy freak even stole her nipple. Swedish invaders later on stole her skull and it's still in their museum today.