• Biltius was a Dutch still life painter.
• He was born in The Hague as the son of Bartholomeus Bilt and an unknown mother.
• Jacob studied in Hague under the obscure French painter Carel Hardy around 1651 and later with Pieter de Putter.
• Biltius was admitted in 1660 to the Confrerie Pictura, which was founded in 1656 by local painters, who were unsatisfied by The Hague Guild of St Luke.
• He married Adriana Proot van der Jeucht in 1653.
• The couple had 8 children of whom Cornelis and Bartholomeus became painters.
• In 1661, Biltius moved to Amsterdam.
• Between 1666 and 1670 he was active in Maastricht.
• He moved to Flanders, settling in Antwerp with his family.
• He was admitted to the Antwerp Guild of St Luke in the Guild year 1672–1673.