There’s an entire spanish school of artillery weapons, you don’t need lombards that are already a building name.
According to this, these kinda cannons were called “Trueno” in spanish anyways.. Pedreros are also a very typical spanish cannon variant that’s not ingame, they are basically mortars that fire rocks rather than normal projectiles. If you want something more modern, there’s the Ordoñez Guns from the late 19th century.