4)
Far less well-known than Kitano Tenman-gū, Kisshōin Tenman-gū (吉祥院天満宮) was originally a grand Sugawara mansion called Sugawara-in (菅原院).
Built in 794 by Sugawara-no-Furuhito (菅原古人-great grandfather of Michizane), it was made into a shrine after Michizane's deification.