Well being an owner of a Great Dane, I have done ALOT of research on the breed, and most sites say that the dogs average from 8-10 years.. I would hate for that to be true.. Because that would mean Baby Blue is already MIDDLE AGED, being 4 years old.!!! Time went by soo fast.
I havent ever met a Great dane older then 6 years old before, but I have heard about some Danes living to be 10-12... I think it is fairly rare, just because they are such a large breed. Alot of health problems come with age.. .