David Cassidy's three half-siblings, Patrick, Ryan and Shaun, were bequeathed Cassidy's music memorabilia, the website said.
It is important to point out that the will was filed in 2004 and David shared a tumultuous relationship with Katie, an actress best known for her portrayal of Laurel Lance, the alter ego of Black Canary on The CW's Arrow.
David Cassidy's only daughter, Katie, has been cut out of his will and will inherit nothing following the death of the teen idol. This past February, Cassidy spoke to People about his children.
Beau, a 26-year-old singer-actor, is the son of David Cassidy and third wife Sue Shifrin. By 2015, Cassidy had declared bankruptcy and was in debt up to $10 million.
It comes just weeks after Katie posted a touching message on social media following her father's death saying "Words cant express the solace our family's received from all the love & support during this trying time".
"She has a completely different life", he told the magazine. "'It's hard for me to even accept how old she is now, like 30".
All things considered, Davidtold People he was "proud" of his daughter and couldn't believe she was in her 30s. My father's last words were 'So much wasted time'.
Katie, who was raised mainly by her mother and stepfather, Richard Benedon, stars as Laurel Lance in the hit TV show "Arrow", and also starred in the 2006 remake of "When A Stranger Calls".