Given this paragraph about Freddie Mercury, where was his last performance with Queen.

Throughout his career, Mercury performed an estimated 700 concerts in countries around the world with Queen. A notable aspect of Queen concerts was the large scale involved.[46] He once explained, "We're the Cecil B. DeMille of rock and roll, always wanting to do things bigger and better."[46] The band was the first ever to play in South American stadiums, breaking worldwide records for concert attendance in the Morumbi Stadium in São Paulo in 1981.[61] In 1986, Queen also played behind the Iron Curtain when they performed to a crowd of 80,000 in Budapest, in what was one of the biggest rock concerts ever held in Eastern Europe.[62] Mercury's final live performance with Queen took place on 9 August 1986 at Knebworth Park in England and drew an attendance estimated as high as 200,000.[63] A week prior to Knebworth, May recalled Mercury saying "I'm not going to be doing this forever. This is probably the last time."[63] With the British national anthem "God Save the Queen" playing at the end of the concert, Mercury's final act on stage saw him draped in a robe, holding a golden crown aloft, bidding farewell to the crowd.

Knebworth Park