Music Experts UNITE...and help me figure this out!

[ElDiablo (Paul)]

Hey all...

I'm looking for a specific piece of classical music and I'm having no luck figuring out what it's called. Ozzy Osbourne used to use a specific piece of classical music to open his shows. During the Bark at the Moon tour he filmed a video called "The Ultimate Ozzy" here in Kansas City. That video has the song that I'm looking for at the beginning of it and I think he's also used it on other tours as well. The same song has been used in multiple battle scenes in hollywood movie productions. I think it was used in Braveheart as well. If you can help me out and find the name or a preview of the song somewhere I would be very greatful!