William McGonagall

In July 1878, William McGonagall walked from Dundee to Balmoral, a distance of about 60 miles (97 km) over mountainous terrain and through a violent thunderstorm to perform for Queen Victoria. When he arrived, he announced himself as "The Queen's Poet". The guards informed him "You're not the Queen's poet! Tennyson is the Queen's poet!" (Alfred Lord Tennyson was the poet laureate). McGonagall presented the letter but was refused entry and had to return home.