Quinten Massijs, portret van de humanist Pieter Gillis, ca. 1517 (?) (gezien in Mauritshuis sept. 2017)

Pieter Gillis (28 July 1486 – 6 or 11 November 1533), known by his anglicised name Peter Giles and sometimes the Latinised Petrus Ægidius, was a humanist, printer, and secretary to the city of Antwerp in the early sixteenth century.[2] He is most famous as a friend and supporter of Rodolphus Agricola, Desiderius Erasmus and Thomas More.

Thomas More’s Utopia, although fictional, includes Pieter Gillis as a character in Book I. More dedicated Utopia to Gillis, who may have designed the Utopian alphabet. They first met when diplomatic business brought More to Antwerp. (Wikipedia)