The codex is one of the most famous and best known illuminated manuscripts. The origin of the codex is unknown, its name is after Domenico Grimaldi, Cardinal of Venice who bought it in 1520 for 500 golden ducates. It contains 831 pages with 110 pictures all of them in a decorated frame. The text is an abridged, condensed version of several books used for liturgical prayers. The extensive text of the individual prayers reflects the Franciscan version of 1477, which is why this book of hours was referred to as a "Breviary." The text and illustration cycles are introduced by a Calendar.

Several book illuminators contributed to the decoration of the manuscript, who were influenced by the most important centres of Flemish illumination, Bruges and Ghent. Gerard Horenbout illuminated the whole of the Calendar; these miniatures are modelled on the calendar miniatures of the Limbourg brothers. Alexander Bening and his son, Simon Bening also worked on the Breviary, and Gerard David contributed a few illuminations to the manuscript, too.

Preview	Picture Data	File Info	Comment
	Grimani Breviary: The Month of January 1510s Manuscript (Ms. lat. I 99), 280 x 215 mm Biblioteca Nazionale Marciana, Venice	783*1077 True Color 123 Kb
	Grimani Breviary: The Month of February 1510s Manuscript (Ms. lat. I 99), 280 x 215 mm Biblioteca Nazionale Marciana, Venice	863*1100 True Color 193 Kb
	Grimani Breviary: The Month of March 1510s Manuscript (Ms. lat. I 99), 280 x 215 mm Biblioteca Nazionale Marciana, Venice	778*1070 True Color 128 Kb
	Grimani Breviary: The Month of April 1510s Manuscript (Ms. lat. I 99), 280 x 215 mm Biblioteca Nazionale Marciana, Venice	784*1083 True Color 144 Kb
	Grimani Breviary: The Month of May 1510s Manuscript (Ms. lat. I 99), 280 x 215 mm Biblioteca Nazionale Marciana, Venice	778*1077 True Color 146 Kb
	Grimani Breviary: The Month of June 1510s Manuscript (Ms. lat. I 99), 280 x 215 mm Biblioteca Nazionale Marciana, Venice	857*1100 True Color 160 Kb
	Grimani Breviary: The Month of July 1510s Manuscript (Ms. lat. I 99), 280 x 215 mm Biblioteca Nazionale Marciana, Venice	800*1104 True Color 188 Kb
	Grimani Breviary: The Month of August 1510s Manuscript (Ms. lat. I 99), 280 x 215 mm Biblioteca Nazionale Marciana, Venice	778*1083 True Color 135 Kb
	Grimani Breviary: The Month of September 1510s Manuscript (Ms. lat. I 99), 280 x 215 mm Biblioteca Nazionale Marciana, Venice	800*1067 True Color 164 Kb
	Grimani Breviary: The Month of October 1510s Manuscript (Ms. lat. I 99), 280 x 215 mm Biblioteca Nazionale Marciana, Venice	777*1081 True Color 141 Kb
	Grimani Breviary: The Month of November 1510s Manuscript (Ms. lat. I 99), 280 x 215 mm Biblioteca Nazionale Marciana, Venice	781*1085 True Color 168 Kb
	Grimani Breviary: The Month of December 1510s Manuscript (Ms. lat. I 99), 280 x 215 mm Biblioteca Nazionale Marciana, Venice	784*1083 True Color 160 Kb
	Grimani Breviary 1510s Manuscript (Ms. lat. I 99), 280 x 215 mm Biblioteca Nazionale Marciana, Venice	750*1025 True Color 159 Kb