Giuseppe Verdi Verdi and Giuseppina decided to adopt Carlo's great-niece Filomena Maria Verdi, then seven years old, as their own child. She was to marry in 1878 the son of Verdi's friend and lawyer Angelo Carrara and her family became eventually the heirs of Verdi's estate. "Aida" was commissioned by the Egyptian government for the opera house built by the Khedive Isma'il Pasha to celebrate the opening of the Suez Canal in 1869. The opera house actually opened with a production of "Rigoletto". The prose libretto in French by Camille du Locle, based on a scenario by the Egyptologist Auguste Mariette, was
Suez Canal John Robinson McClean, later President of the Institution of Civil Engineers in London, and again Negrelli, to examine the plans developed by Linant de Bellefonds, and to advise on the feasibility of and the best route for the canal. After surveys and analyses in Egypt and discussions in Paris on various aspects of the canal, where many of Negrelli's ideas prevailed, the commission produced a unanimous report in December 1856 containing a detailed description of the canal complete with plans and profiles. The Suez Canal Company ("Compagnie universelle du canal maritime de Suez") came into being on 15 December 1858.