THE JURIDICAL CONTROVERSIES 377 



controversy broke out between Poland and Denmark as to the 

 sovereignty of the Baltic Sea, which was claimed by each, as 

 it had been shortly before by Sweden, and formed, indeed, one 

 of the causes of the war by Gustavus Adolphus against 

 Germany. 1 



The juridical controversies respecting the appropriation and 

 dominion of the seas continued throughout the whole of the 

 seventeenth century and well on into the next, and so far as 

 this country was concerned, they were particularly vehement 

 during the first and the third Dutch wars. 



1 Mare Balticum (anon.), 1638 ; A nte-Mare alticum, scilicet, an ad Reges Dania, 

 an ad Reyes Polonice, pertineat (anon.), 1639; Azuni, Systema del Principii del 

 Diritto fifaritimo. 



