King Charles I granted Christian IV of Denmark the right to recruit shipbuilders in England, and in 1641 Robbins accepted an offer to join the Danish service.
[3] One of his first assignments, was in 1642 to control if the upper deck of the ship Trefoldighed, being built in Neustadt, was done according to pattern.
[4] In 1645 Robbins was ordered to Norway to build ships from timber supplied by Hannibal Sehested, the Danish statholder.
[5] The timber purveyor, Frederik Bøjsen, a burgher of Christiania, was the government contractor for the building of the ships.
He continued to live in Copenhagen, re-entered royal service in 1668, and died while active in 1680.