English Captain: Richard Swanley

Richard Swanley served in the Parliamentarian navy and King Charles's navy before that. From 1640 to 1641, he is known to have commanded the Mary Rose. From 1642 to 1643, he commanded the 2nd Rate Charles (250 men) in the Summer Guard for 1642. In 1643, he was Admiral commanding the ships of the Irish Guard with his flag on the 3rd Rate Bonaventure (36 guns and a crew of 170 men). From 1644 to 1645, he flew his flag, as Admiral commanding the Irish Guard, on the 3rd Rate Leopard (38 guns and a crew of 160 men). Powell only lists him as commanding the Leopard in the Summer Guard for 1644. He does list him as commanding the Irish Guard, as Admiral, for the Summer Guard for 1645, with his flag on the Lion. Anderson says he was "suspended", although I'm not sure of the result, for he was back as Admiral commanding the Irish Guard from 1646 to 1647, with his flag on the Lion. Powell has him commanding the 2nd Rate Charles, in the Summer Guard for 1646, at Chatham, which seems like a mistake. For the Winter Guard in 1646, he was definitely Admiral commanding the Irish Guard, with his flag in the Lion, as he was for the Summer Guard for 1647 (in this list as a Vice-Admiral). In 1648, he may have commanded the 2nd Rate Unicorn, although I can't verify that in Powell's work. Michael Baumber says that Richard Swanley died in 1650. Sources:

1. R. C. Anderson, List of English Naval Captains 1642-1660, 1964.
2. Michael Baumber, General-At-Sea, 1989.
3. J. R. Powell, The Navy in the English Civil War, 1962.