Antonio Ribas, also known as Antonius Hasselman, (ca. 1640 - 28 April 1711) was a Spanish-born Brunanter painter of the late Renaissance period. He is considered one of the finest early Brunanter painters, along with Rickard Helsenberg and contemporaries Hans Fabre and Carels Van Laesburg. Hasselman was well supported by King Karl Van Draak as a court painter.
Antonio Ribas was born in Seville, Spain around 1640 to a penniless musician and his wife. His father died shortly after his birth and his mother married a Pieter Hasselman, a Brunanter merchant from Koningstad. Antonio, travelling under the surname "Hasselman" moved with his mother to Brunant, but after two years, his stepfather died and his mother remarried again, this time to a painter, who became Antonio's tutor.
Hasselman began painting in the early 1660s, learning from his mother's third husband. By the mid-1670s, he was well-known in the capital region and even painting for King Karl Van Draak, who gave him a royal patronage in 1678. He famously made portraits of all of the king's children.