What is that the name of that funeral piece,a march by beethoven I think,but it's not the one everyone knows?

the rhythm is dotted quaver-semiquaver for most of of it and it's about 3 or 4 minutes long. I think it's by beethoven but i'm not sure.Military bands play it a lot.sorry i can't give more information- I would write the tune out but i haven't got a pencil :)