QUOTE(barry-clari @ Dec 16 2010, 11:10 PM)

Possibly! Correct me if I'm wrong DC, but I believe we only know his baptism date for sure.
Yep..he was baptised on 17th December 1770. It was tradition to be baptised within 24 hours of the birth. His birthday is 16/17 December, depending on which account one reads.
Beethoven himself wasn't entirely sure of his birth date. His parents' first born son was Ludwig Maria Beethoven who was born in 1769, but only lived for six days. Our Ludwig's father (allegedly) destroyed his birth certificate when he tried to portray Beethoven as being younger than he was (by two years) when he wanted Ludwig to perform 'like Mozart'.