Giulia Grisi (22 May 1811 – 29 November 1869) was an Italian opera singer. She performed widely in Europe, the United States and South America and was among the leading sopranos of the 19th century. Her second husband was Giovanni Matteo Mario de Candia (also known as "Mario the Tenor"), scion of a noble family of the Kingdom of Sardinia. She is buried at Père Lachaise Cemetery in Paris. Her grave is marked "Juliette de Candia", styled in her married last name; usually better known by the courtesy title the Marquesse of Candia.