Maria Teresa Agnesi Pinottini was an Italian composer born in Milan. She was not only known for her compositions but also as a talented harpsichordist and singer. Her music mainly featured keyboard and vocal elements. Maria Teresa received a rich education from her father, Pietro Agnesi, who was part of the lesser nobility. She was inspired by her older sister, Maria Gaetana, a mathematics prodigy. Maria Teresa married Pier Antonio Pinottini in 1752, but they faced financial difficulties, and he died shortly after.

Throughout her career, she performed numerous times, with a notable performance on 16 July 1739, impressing the French traveller Charles de Brosses. Her theatrical debut was the Cantata Pastorale Il Ristoro d’Arcadia in 1747. Maria Teresa gained the support of influential patrons, including Maria Theresa, the Holy Roman Empress. Her music was technically challenging and reflected the northern Italian style. Over time, her compositions evolved from simple to complex, showcasing her growth as a composer.