On August 21, Hayden Panettiere’s ex-fiancé, Wladimir Klitschko, remembered the late actress on her 37th birthday. The year marks Hayden’s first birthday after her recent passing. The Heroes actress died on August 16 at the age of 36.Hayden Panettiere’s ex is the former Ukrainian professional boxer, who shared posts on his social media to pay tribute to her. He celebrated her life and spirit. Wladimir Klitschko also thanked Hayden’s fans for showing love and support for her.“Today is Hayden's birthday. Instead of celebrating the way we had planned, today we celebrate her life, her spirit, and the love she brought into this world. I want to thank all of Hayden's fans, friends, and everyone who has reached out for the incredible outpouring of love and support. At a time filled with so much sadness, your kindness has reminded me that there is still so much good in humanity.” View this post on Instagram Instagram PostHe lastly added:“Happy Birthday, Hayden. You are loved, you are missed, and you will never be forgotten”Wladimir Klitschko shared a heartfelt post after Hayden Panettiere’s deathRecently, on August 18, Wladimir shared an emotional post after Hayden’s death. He said that she was an important part of his and their daughter’s life. He also praised Hayden Panettiere for the career she built. He wrote:“She left this world far too soon. Hayden was, although no longer my partner, an important part of my life and the mother of our daughter, Kaya. She built an incredible career through immense talent, while also facing the darker sides of a very demanding industry. Nothing will erase the times we shared or the place she had in our lives.”He went on to mention their daughter, Kaya, whom they welcomed in December 2014.“To our daughter Kaya, I will always speak of her mother with respect and make sure she remembers the person she was,” Klitschko added. View this post on Instagram Instagram PostHe lastly added:“I extend my deepest condolences to Hayden's parents, her friends, and her fans, who are also grieving today. Young and talented people like Hayden should not leave this world so soon. I ask everyone to please respect our family's feelings and privacy during this incredibly difficult time.”Hayden and Wladimir were in a relationship for around nine years after they first met in 2008. They got engaged and later split in 2018.The Nashville actress was reportedly found in cardiac arrest by first responders at a South Carolina home. Later, her ex-boyfriend Brian Hickerson, who was reportedly at Panettiere’s home when she died, gave her medications to the police. As of this writing, the official cause of Hayden Panettiere’s death remains undisclosed.