Son of Willem Blaeu (1571-1638).
Brother of Joan Blaeu (1596-1673).
"Umbria overo ducato di Spoleto," Amsterdam, 1640, hand-colored engraving, map by Joan and Cornelius Blaeu Map of the Umbria region, the Duchy of Spoleto (570-1201), and surrounding territories. Ornate multicolor title cartouche with the helmeted female personification of Umbria (?) holding a minature building with radiating light, two cherubs, and a bull under a rainbow (top right), elaborate multicolor dedication cartouche to "Francesco Cardinale Barberino Vicecancellario e Nipote della S.S. Urbino VIII," Cardinal Francesco Barberino Vice Chancellor and grandson of Pope Urban VIII (1568-1644), with the Barberini family crest and a scarlet galero, a cardinal's hat, flanked by two cherubs