Dissatisfied as a privateer for the Dutch Republic, he turned to piracy and captured hundreds of ships operating in Europe, the Mediterranean and West Africa during the 1620s.
Born in Oostzaan, his father was an alleged member of the Geuzen of Dirck Duyvel housed in Zaanstreek allied other nobleman in opposition of Spanish rule.
Shortly after leaving Vlissingen, he resorted to open and indiscriminate piracy selling his cargo in England and the Barbary coast.
He was a close friend of the local governor as well as the Thomas Wentworth, 1st Earl of Strafford and freely operated in the Irish Sea and the English Channel under their protection for some time.
[1] Compaen ordered his four ships to attack the stragglers although he was forced to withdraw after his flagship suffered severe damage from the Hollandia under Captain Wybrant Schram.
When Schram's logbook was later published, Compaen gained particular notoriety from the battle whose reputation was established as "the most notorious Dutch pirate".
Compaen, at certain times, often found it difficult to control his large crew who were given to heavy drinking and survived on poor rations being short of supplies.
Stopping to drop off some of his crew in Ireland, he arrived in Vlie and officially received his pardon from Prince Frederik Hendrik in the Hague.