William Topaz McGonagall is renowned as the worst poet in the English language. Sample:

Beautiful Railway Bridge of the Silv’ry Tay!
Alas! I am very sorry to say
That ninety lives have been taken away
On the last Sabbath day of 1879,
Which will be remember’d for a very long time.

He didn’t even get the facts right here — 75 died.

In the opening to his Poetic Gems, McGonagall wrote, “The most startling incident in my life was the time I discovered myself to be a poet.” Millions agreed. Stephen Pile, in The Book of Heroic Failures, calls him “so giftedly bad he backed unwittingly into genius”; his temperance speeches were wildly popular with “poet-baiters” in Dundee, who pelted him with eggs and vegetables, and he was allowed to play Macbeth only if he paid in advance.

When Tennyson died, McGonagall visited Balmoral to ask if he might become poet laureate. He was told the queen was not at home.