Alessandro Ignazio Marcello (Italian:[marˈtʃɛllo]; 1 February 1673[1] – 19 June 1747[2]) was an Italian nobleman and composer.
^[MARCELLO, Alessandro Ignazio – Italian composer Benedetto Marcello's elder brother, was born in Venice on 24 August 1669, firstborn of Agostino, of the branch to the Magdalene, and of Paolina Cappello S. Lunardo, Venetian patricians. 24 August 1669, the date of birth of the composer reported in the family genealogies and accepted in the most recent encyclopedias, is actually that of a brother of the same name, who disappeared in childhood; it is the same Marcello, in a Latin epigram entitled De sua genitura, to confirm the data found in the baptismal faith. Treccani]
^Marcello's birth/death dates are given as 1684 to 1750 in The Grove Dictionary of Music and Musicians.