Francesco del Cossa
Cossa is best known for his frescoes. One of the first records we have of him is in 1456 when he was an assistant to his father, Cristofano del Cossa, at that time employed in painting the carvings and statues on the high altar in the chapel of the bishop's palace at Ferrara.
Allegorical frescoes in the Palazzo Schifanoia 
In conjunction with Cosimo Tura, Cossa is now known for fresco decoration of the summer pleasure villa/palazzo known as the Palazzo Schifanoia, located just outside the city gates. Together, they painted a series of the elaborate allegories around the themes of zodiacal signs and months of the year. These were only partially restored in the 20th century, and there are three that are reasonably assigned to Cossa. Of these, one of the most remarkable images is the horde of naked toddlers in the Allegory of May - Triumph of Apollo. Apparently a sign of springtime's prolific blossoming, the crowded rows of babies mass like a phalanx of infantile Rockettes.
The Allegory of April has a depiction of the trio of Graces, one of the earliest Post-classical representations of the naked intertwined dancers in painting. Sandro Botticelli's version in Primavera dates from 1482. See the 1501 version of the Three Graces (now at Chantilly). Assuming the date of death of Cossa is correct, this one must have been completed prior to the others.
Cossa in Bologna 
In Bologna he obtained many commissions under the patronage of the Bentivoglio family. Here he painted his two masterpieces: the Virgin and Child with two saints and a portrait of Alberto de' Catanei (1474) and fresco of the Madonna del Baracano, representing the Virgin and Child with portraits of Giovanni Bentivoglio and Maria Vinziguerra (1472).
In the National Gallery of London there is a picture by him representing St. Vincent Ferrer. There is a fine profile portrait at Locko Park near Derby, said to represent Duke Ercole I of Ferrara. In the Dresden collection there is also an Annunciation that has, however, been attributed to Pollaiuolo.
Anthology of works 
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- Annunciation and Nativity
- Griffoni Polyptych
- St Vincent Ferrer (1473, National Gallery, London)
- St Peter (1473, Pinacoteca di Brera, Milan)
- St John the Baptist (1473, Pinacoteca di Brera, Milan)
- St Florian 1473,National Gallery of Art, Washington)
- St Lucy (1473, National Gallery of Art, Washington)
- The Crucifixion (1473, National Gallery of Art, Washington)
- St Petronius (1473, Palazzo dei Diamanti, Ferrara)
- 11 other small pictures from altarpiece (1473, ?, ?)
- Madonna with the Child and Saints(1474, Pinacoteca Nazionale, Bologna)
- Frescoes for Hall of Months, Palazzo Schifanoia, Ferrara (before 1470?)
- Polyhymnia, the Muse of Many Songs
The Great Google Earth Treasure Hunt 
The stained glass window was revealed to be the final answer of the 'Great Google Earth Treasure Hunt'.
- Encyclopedia of Artists, volume 2, edited by William H. T. Vaughan, ISBN 0-19-521572-9, 2000