German longsword. This one is an aluminum waster, I'm currently looking into having a steel practice sword made to the same dimensions (40" blade, 13" hilt, ~3lbs, 3" center of balance).

Base model of my waster. Mine has a 4" ricasso, a diamond-section blade, and a red leather-wrapped grip but otherwise the same.
This is an Irish-style sword

The hollow pommel is a defining characteristic of Irish swords.