Philippe Grandjean (1666–1714) was a French type

Typography

Typography is the art and technique of arranging type in order to make language visible. The arrangement of type involves the selection of typefaces, point size, line length, leading , adjusting the spaces between groups of letters and adjusting the space between pairs of letters...

 engraver notable for his series of Roman and italic types known as Romain du Roi (French: King's Roman), produced in tandem with Louis Simonneau. King Louis XIV

Louis XIV of France

Louis XIV , known as Louis the Great or the Sun King , was a Bourbon monarch who ruled as King of France and Navarre. His reign, from 1643 to his death in 1715, began at the age of four and lasted seventy-two years, three months, and eighteen days...

, in 1692, directed that a typeface be designed at any necessary expense for the exclusive use of the Royal printer. The design was carried out by Grandjean and Simonneau with approval and supervision by a group of mathematicians and philosophers.