“Harry Potter” author JK Rowling revealed the Potter family history in her new post on the revamped Pottermore site.

Rowling said Harry’s lineage can be traced back to the 12th century and his family is a political player who had magical involvement in the First World War.

The author’s latest writing coincided with the re-launching of the newly redesigned Pottermore website. She also shared the new look of Pottermore on her Facebook, and Twitter accounts.

Rowling wrote the Potters were not uncommon Muggles, which excluded the family from the so-called “Sacred Twenty-Eight” – wizard families that remained untainted by Muggle blood.

The author added that it was Fleamont Potter who makes the family fortune by creating the magical Sleekeazy’s Hair Potion. Fleamont married Euphemia and they became parents to James, who married Muggle-born lady Lily Evans. The young couple later had their bunch of joy, Harry.

The author also disclosed that the Invisibility Cloak was a family heirloom that goes way back in the middle ages, when Linfred’s son married Iolanthe Peverell, the granddaughter of Ignotus Peverell. Ignotus was the original owner of the cloak, which James Potter later inherited.

The Invisibility Clock became an important item in the novel, “Harry Potter and the Deathly Hallows,” Rowling mentioned. It also helped Harry through all seven books of the series, USA Today noted.

The new Pottermore site allows readers to access content in a totally magical way than when it was first launched in 2012. USA Today noted that the most notable improvement of the site was that it was redesigned for mobile use.

The site also feature contents from what they are called “the Pottermore Correspondent,” who will be “a journalist dedicated to reporting on all the latest updates going on in the Wizarding World,” USA Today added.

Read the full text of “The Potter Family” on Pottermore here and listen to Rowling’s introduction of the new site below.