Laki most likely killed more people than all those combined.
Like this one, Laki was a fissure eruption. It lasted from June 1783 till Feb 1784. Pumped so much gas into the air it cause sulfur dioxide fogs worldwide.
Iceland is infamous for fissure eruptions. The ground simply splits apart from the shifting plates and they keep going and going and going on and on and on.
We’re going to need a better mask ....