Elton John was knighted by Her Majesty The Queen in 1997.
View page
sir elton john
View page
Sir Elton John of UK.
View page
It is capitalized when it is a title, meaning it comes before a
name, but not as a pronoun, where it takes the place of a name. For
example in Sir Elton John the Sir is capitalized, but in the
sentence, "Hello sir," the sir would not be capitalized.