Need some help here. I have a painting of my great grandfather, but I don't know a thing about it. Does anyone here have that kind of specialized knowledge?

by angryku

https://i.imgur.com/8YlObNZ.jpg

Supposedly he was in the Italian Army, and this painting is from the late 1800s, but I don't even know if any of that story is true. Does anyone know anything about this uniform? Is this even an Italian Army uniform? I'd love some input or advice.

SDStormtrooper

http://www.collezioni-f.it/museo/esercito2.html

The hat seems to match up "Tenente dei Bersaglieri" (lieutenant of the marksmen), I can't you much more unfortunately :(