Original: His fellow countryman , Jan Carstenszoon ( or Carstensz ) , visited in 1623 and named the gulf in honor of Pieter de Carpentier , at that time the Governor-General of the Dutch East Indies .
Simplified: Jan Carstenszoon ( or Carstensz ) , visited in 1623 and named the Gulf after Pieter de Carpentier , who was the Governor-General of the Dutch East Indies .