- Francesco Paolo Fiore
- and Pietro C. Marani
(Pollaiolo) [Francesco di Giorgio]
(b Siena, bapt Sept 23, 1439; d Siena, bur Nov 29, 1501).
Italian architect, engineer, painter, illuminator, sculptor, medallist, theorist and writer. He was the most outstanding artistic personality from Siena in the second half of the 15th century. His activities as a diplomat led to his employment at the courts of Naples, Milan and Urbino, as well as in Siena, and while most of his paintings and miniatures date from before 1475, by the 1480s and 1490s he was among the leading architects in Italy. He was particularly renowned for his work as a military architect, notably for his involvement in the development of the Bastion, which formed the basis of post-medieval fortifications (see Military architecture & fortification, §III, 2(ii) and 4(ii)). His subsequent palace and church architecture was influential in spreading the Urbino style, which he renewed with reference to the architecture of Leon Battista Alberti but giving emphasis to the purism of smooth surfaces. His theoretical works, which include the first important Western writings on military engineering, were not published until modern times but were keenly studied in manuscript, by Leonardo da Vinci among others; they foreshadowed a number of developments that came to fruition in the 16th century (...