I wouldn't say I'm an expert but I have a basic understanding of European institutions.
Here you go:
https://en.wikipedia.org/wiki/Relationship_between_the_European_Court_of_Justice_and_European_Court_of_Human_Rights
https://en.wikipedia.org/wiki/European_Court_of_Human_Rights...
All members of the Council of Europe have adopted the European Convention on Human Rights, not just EU states. Are we leaving the Council of Europe now too?