Seamus Heaney, a Nobel laureate, is known for poetry rooted in the landscape of which country?

Seamus Justin Heaney MRIA (13 April 1939 – 30 August 2013) was an Irish poet, playwright and translator. He received the 1995 Nobel Prize in Literature. Among his best-known works is Death of a Naturalist (1966), his first major published volume. American poet Robert Lowell described him as "the most important Irish poet since Yeats", and many others, including the academic John Sutherland, have said that he was "the greatest poet of our age". Robert Pinsky has stated that “with his wonderful gift of eye and ear Heaney has the gift of the story-teller.” Upon his death in 2013, The Independent described him as "probably the best-known poet in the world"