Giovanni Battista Martini, Italian pianist and composer (d. 1780)

Giovanni Battista or Giambattista Martini, O.F.M. Conv. (24 April 1706 – 3 August 1784), also known as Padre Martini, was an Italian Conventual Franciscan friar, who was a leading musician, composer, and music historian of the period and a mentor to Mozart.