The Mt. Tambora eruption led to severe famine in many countries. It’s estimated 300,000 people died of starvation in Ireland alone. Three of my ancestors died of starvation in 1817 (not in Ireland). Their white privilege did not help them much. There was hardship in the US too but I think few if any actual deaths by starvation.
It also resulted in the rapid spread of Cholera.
A hell of a lot more than 300 grand died as a result of that one.
It was a VEI 7.