Willem Ysbrandtszoon Bontekoe (1587??657) was born in Hoorn in Holland. In 1607, at the age of 20, Bontekoe succeeded his father as captain of the ship Bontekoe. In 1617, the ship was seized by Barbary pirates and Bontekoe ended up at a slave market. He was bought free, but his ship was lost. He became a skipper for the Dutch East India Company (VOC), and made just one eventful voyage for the company (1618??5).

After a pleasant nine-day stay on Ile Sainte-Marie near Madagascar, things went badly wrong. A fire, caused by a shipmate accidentally setting fire to a cask of brandy, caused the gunpowder magazine to explode and sink the ship. Of the 119 still on the ship only two survived, including Bontekoe, but he was wounded. There were 70 in two lifeboats, so 72 survived. Sails were made from the shirts of the crew. They were shipwrecked at sea