Each nation, no doubt, retained a predilection for its own national flag—a preference which its adherents expressed each in their own way, and most probably in terms not untinged by caustic references to controversies and contentions of previous days.
When James had ascended the throne of England, it was his great desire to be styled King of "Great Britain," as well as of "France and Ireland." He had caused himself at the outset to be so proclaimed, and afterwards used the phrase in his proclamations, but without due authority. During the first year of his reign opinions on the point were asked of the Judges of the courts, and also of the Lords and Commons of England, but the replies of all were unanimously against his right to the assumption of any such title, as being one which might seem to indicate a fusion of the two kingdoms.
The fact was, that although the two kingdoms of Scotland and England had been joined in allegiance to the same sovereign, who was equally king of each, yet as each kingdom still retained its own separate parliament, their union had not been made adequately complete. The King had particularly desired to complete this union. In a proclamation he issued, he states he had found among the "better disposed" of his subjects
"a most earnest desire that the sayd happy union should be perfected, the memory of all preterite discontentments abolished, and all the inhabitants of both the realms to be the subjects of one kingdom."
He says he will himself use every diligence to have it perfected,
"with the advice of the states and parliament of both the kingdoms, and in the meantime till the said union be established with due solemnite aforesaid, His Majesty doth repute, hold and esteem both the two realms as presently united, and as one realm and kingdome, and the subjects of both the realms as one people, brethren and members of one body."
But charm he never so wisely, the King could not get his subjects to see matters in the same light as himself, nor was he able to get their Parliaments to unite.
Thus it occurred that in 1606, in the fourth year after the joining of the two thrones, the King, finding that difficulties kept arising about their flags between the subjects of his two adjacent kingdoms, considered it advisable to issue a proclamation declaring the manner in which they were in future to display their national Jacks, and also authorizing a new flag, which was to be used by each in addition to their own national flag. This flag was the "additional" Jack of James I. (16).