This article about Richard Martin (1754 - 1834)
https://en.wikipedia.org/wiki/Richard_Martin_(Irish_politician)
You'd want to be a serious operator to be considered a harsh landlord at the time. Though 150,000 dead would do it
https://en.wikipedia.org/wiki/Richard_Martin_(Irish_politician)
QuoteActive life
Martin also had a very eventful life. He was a colonel of the County Galway Volunteers.[29] He survived two shipwrecks.[30] He fought over a hundred duels with sword and pistol and earned the nickname "Hairtrigger Dick".[31] He travelled extensively in Europe and the Americas during the 1770s and was in New England when the American Revolutionary War began.[32] He initiated Galway's first theatre in 1783.[33]
Martin was on a first-name basis with many of the famous names of his age, including King George IV (who gave him the nickname "Humanity Dick"), Henry Flood, Henry Grattan, William Pitt, Queen Caroline, and Daniel O'Connell.[34] Despite his nickname he was considered a very harsh landlord in Ireland.[35]
On his death in 1834 his son Thomas became his heir.[36] A workhouse was built on his estate during the Irish famine. Although the workhouse was an apparent pledge to help the poor suffering from starvation, it is agreed that Thomas and his family did little to help and approximately 150,000 people died on their land during this period from starvation and fever.[36] Most of Martin's estate (approx. 200,000 acres (809 km2)) was in the west of Ireland and this area had one of the highest death tolls during the Famine.
You'd want to be a serious operator to be considered a harsh landlord at the time. Though 150,000 dead would do it