If you Google it then it comes up with the following:
While on a visit in April 1981, the poet suffered a stroke which ... He died just a month later, on May, 19 at his home in Cornwall with his beloved
However, if you open the link then you realise that where the dots are it goes on to say that he went on with a nurse in attendance, visiting Derbyshire in April 1984....... Possibly the question was set according to this without the person having read the information correctly.
So, am sure it is correct. Hope you win!