When it comes to Harry's name, Rowling has now revealed the existence of a second Harry Potter who was never mentioned in the books, reports mirror.co.uk.

The revelation came in her latest post to Pottermore, a blog.

Henry Potter -- known as Harry to his friends -- was Harry's great grandfather who enjoyed an illustrious career as part of the Wizengamot from 1913 to 1921. Like the younger Harry, he was very pro-Muggle rights, which meant the author of pure blood guide "The Sacred Twenty-Eight" refused to recognise the Potter clan as pure blood.