Kultida Woods, the mother of Tiger Woods, golf’s biggest star, died Tuesday, according to the 15-time major winner. He did not provide give her cause of death.

Tiger Woods says that his mother, Kultida, has died at age 80. The golfer credited her for his success and encouraging his signature look of red shirts.

Kultida Woods was a prominent presence at her son’s events over the years, particularly following the death of her husband, Earl, in 2006. In announcing the sad news, Tiger Woods described her as his “biggest fan and greatest supporter”, paying tribute to the impact that she had had on his life and his career.