\paperw19995 \margr0\margl0 \plain \fs20 15000 \f1 Italian painter.\par
Portelli, who was a disciple of Ridolfo del Ghirlandaio or Michele di Ridolfo, was chiefly active in F
lorence, where he came under the influence of Rosso Fiorentino, Bronzino, the Flemish painter known as Giovanni Stradano (Jan van der Straet) and Giorgio Vasari. In 1539 Portelli painted, from a design by Francesco Salviati, one of the ôhistoriesö for th
e decorations set up to celebrate the marriage of Cosimo I deÆ Medici to Eleonora of Toledo. The \i Immaculate Conception, \i0 which is now in the Accademia in Florence, dates from 1555, while the \i Martyrdom of Saint Romulus\i0 in the church of Santa
Maria Maddalena dei Pazzi was painted around 1560. Finally, in 1571, Portelli created the elegant oval painting of \i Thetis and Neptune\i0 , intended to decorate Francesco IÆs study in Palazzo Vecchio.
