Dutch Captain: Willeboort Leendertszoon (or Lenaertszoon)

Willeboort Leendertszoon (or Lenaertszoon) served the Admiralty of the Maze (Rotterdam). In 1628 and 1629, he commanded the ship Dolphijn. The Dolphiijn was a vessel of 170 lasts and had a crew of 85 men. The Dolphijn was built in 1623. In 1629, the Dolphijn's armament consisted of 2-24pdr, 2-chambered 24pdr, 2-12pdr, 8-8pdr, 4-6pdr, 2-5pdr, 2-4pdr, and 5-steenstukken with 5 chambers. In 1633, he still commanded the Dolphijn, but the ship now carried 29 guns. An extra 2-4pdr were added (this is if you count steenstukken, which seems to be a common practice, but which I have not done in the past). Willeboort Leendertszoon does not appear in any of the published sources available to me. Sources:

1. Staet van Oorlog te Water for the year 1628.
2. Staet van Oorlog te Water for the year 1629.
3. Staet van Oorlog te Water for the year 1633.