were there any relation made with any foreign countries ?
France, Denmark and Russia.
Holy Roman Empire
When Regensburg served as the site of the Diet, France and, in the late 1700s, Russia, had diplomatic representatives there. 
who was george iii? King of Great Britain. when did he assume the position? 25 October 1760. did he take any measures to abolish slavery? No,in George III's reign 1.6 million slaves were transported out of Africa. was he given any titles? Duke of Brunswick and Lüneburg, Arch-Treasurer and Prince-elector of the Holy Roman Empire. what is the duty of the last profession? They elect the emperor of the Holy Roman Empire. can you name any dynasty that ruled the empire? Salian dynasty. what institutions are found there? UNANSWERABLE
wiki:7721989
Holy Roman Empire [SEP] Foreign relations
The Habsburg royal family had its own diplomats to represent its interests. The larger principalities in the HRE, beginning around 1648, also did the same. The HRE did not have its own dedicated ministry of foreign affairs and therefore the Imperial Diet had no control over these diplomats; occasionally the Diet criticised them. When Regensburg served as the site of the Diet, France and, in the late 1700s, Russia, had diplomatic representatives there. Denmark, Great Britain, and Sweden had land holdings in Germany and so had representation in the Diet itself. The Netherlands also had envoys in Regensburg. Regensburg was the place where envoys met as it was where representatives of the Diet could be reached.