Yes. That is one of the reasons why there is so much witchcraft in Shakespeare's Macbeth which was about James' ancestral home of Scotland. Plus he said he had a personal experience of it in the form...
His mother was Mary Queen of Scotts and his father was Lord Darnley.
Yes.His eldest son, the Prince of Wales, predeceased him. His second son became Charles I. And his daughter was the ancestor of George I.
He was Catholic and reputedly a homosexual.
He was crowned King of Great Britain NOT England.