the beginning of the Great Famine
1845 to 1852.
Ireland was ruled by the UK appointed Lord Lieutenant who represented Queen Victoria in Ireland. In 1845 the Lord Lieutenant was Lord Heytesbury.
1845.
During the period from 1845 to 1852, Ireland suffered a famine due to the potato crop getting potato blight which destroyed the crop.
The potato famine was in Ireland at that time.
1845 to 1849.
Ireland
The potato.
I think 16
1845 - 1850 (1847 was the worst year)
the Great Famine
Arguably, the famine began on 13 September 1845 when the first incidence of the Blight was reported in Ireland.