Royal Gems

McGonagall was a devoted subject of Queen Victoria, famously walking all the way to her palace at Balmoral to obtain her patronage. Several of his poems were addressed to his beloved monarch:

A Requisition to the Queen
An Ode to the Queen on her Jubilee Year
Attempted Assassination of the Queen
The Queen's Jubilee Celebrations
An Ode to the Queen
The Death of the Queen

The Queen's death in 1901 came less than a year before his own, but he still found time to hail her successor...

McGonagall's Ode to the King