In 1635 met the first Assembly, Leonard Calvert and his Council sitting with the burgesses, and this gathering of freemen proceeded to inaugurate legislation. There was passed a string of enactments which presumably dealt with immediate wants at St. Mary's, and which, the Assembly recognized, must have the Lord Proprietary's as assent. A copy was therefore sent by the first ship to leave. So long were the voyages and so slow the procedure in England that it was 1637 before Baltimore's veto upon the Assembly's laws reached Maryland. It would seem that he did not disapprove so much of the laws themselves as of the bold initiative of the Assembly, for he at once sent over twelve bills of his own drafting. Leonard Calvert was instructed to bring all freemen together in Assembly and present for their acceptance the substituted legislation.
Early in 1638 this Maryland Assembly met. The Governor put before it for adoption the Proprietary's laws. The vote was taken. Governor and some others were for, the remainder of the Assembly unanimously against, the proposed legislation. There followed a year or two of struggle over this question, but in the end the Proprietary in effect acknowledged defeat. The colonists, through their Assembly, might thereafter propose laws to meet their exigencies, and Governor Calvert, acting for his brother, should approve or veto according to need.
When civil war between King and Parliament broke out in England, sentiment in Maryland as in Virginia inclined toward the King. But that Puritan, Non-conformist, and republican element that was in both colonies might be expected to gain if, at home in England, the Parliamentary party gained. A Royal Governor or a Lord Proprietary's Governor might alike be perplexed by the political turmoil in the mother country. Leonard Calvert felt the need of first-hand consultation with his brother. Leaving Giles Brent in his place, he sailed for England, talked there with Baltimore himself, perplexed and filled with foreboding, and returned to Maryland not greatly wiser than when he went.
Maryland was soon convulsed by disorders which in many ways reflected the unsettled conditions in England. A London ship, commanded by Richard Ingle, a Puritan and a staunch upholder of the cause of Parliament, arrived before St. Mary's, where he gave great offense by his blatant remarks about the King and Rupert, "that Prince Rogue." Though he was promptly arrested on the charge of treason, he managed to escape and soon left the loyal colony far astern.
In the meantime Leonard Calvert had come back to Maryland, where he found confusion and a growing heat and faction and side-taking of a bitter sort.
To add to the turmoil, William Claiborne, among whose dominant traits was an inability to recognize defeat, was making attempts upon Kent Island.
Calvert was not long at St. Mary's ere Ingle sailed in again with letters-of-marque from the Long Parliament. Ingle and his men landed and quickly found out the Protestant moiety of the colonists. There followed an actual insurrection, the Marylanders joining with Ingle and much aided by Claiborne, who now retook Kent Island. The insurgents then captured St.
Mary's and forced the Governor to flee to Virginia. For two years Ingle ruled and plundered, sequestrating goods of the Proprietary's adherents, and deporting in irons Jesuit priests. At the end of this time Calvert reappeared, and behind him a troop gathered in Virginia. Now it was Ingle's turn to flee. Regaining his ship, he made sail for England, and Maryland settled down again to the ancient order. The Governor then reduced Kent Island. Claiborne, again defeated, retired to Virginia, whence he sailed for England.