Bernardo Rossellino (1409-64), born probably in Florence. He worked chiefly as an architect and was responsible for restorations of the Church of San Francesco in Assisi and many churches and palaces in Rome, Siena, Florence, and other cities. His most famous work is the tomb (begun 1444) of the Florentine historian Leonardo Bruni in the Church of Santa Croce in Florence. As a young man he was the apprentice and collaborator of Leone Battista Alberti, from whose sketches and plans he constructed the Palazzo Rucellai, Florence, one of the very first fully Renaissance palazzi. It bears three orders on flat pilasters inscribed on a surface of delicate and varied rustication, beneath a corbelled cornice without a frieze. At Arezzo he applied a façade all’antica to the late Gothic structure of the charitable confraternity, the Fraternità della Misericordia. Rossellino was active in Tuscany and Rome, where he worked a lot for Pope Nicholas V, enlarging the transept and apse of the Old St. Peter’s Basilica (1452–55) that was swept away in the following generation. Among lesser projects carried out in Rome for Nicholas was restoration of Santo Stefano Rotondo, c. 1450, where Rossellino’s altar may still be seen.
Rosselino became famous most of all for the idealized replanning of Pienza, the ancient district of Corsignano, where Pope Pius II wanted to make a monument of his place of birth, designed according to the principles of the Renaissance urbanistics and architecture. He made the center with the square and main constructions, the Duomo, Palazzo Pubblico, the Bishop’s Palace (Palazzo Vescovile) and the Palazzo Piccolomini, which were to be surrounded by the rest of the little city. In the Palazzo Piccolomini Rossellino took up again the façade organization of Palazzo Rucellai. For Pius Rossellino also designed the Sienese palazzi of the Nerucci and the beautiful Palazzo Piccolomini.
In architecture he innovated the mural funeral
Cited: http://www.artcyclopedia.com/artists/rossellino_bernardo.html