Kultida Woods, the Thai-born mother of Tiger Woods who instilled his dominant spirit and encouraged him to wear a red shirt on Sunday as his power color, died Tuesday. Woods announced the death of his 80-year-old mother in a social media post.

From the 1997 Masters to Tiger Woods’ appearance in his new TGL venture last week, Kultida Woods was normally close by or in the gallery, which is why the golf world was stunned when Tiger Woods announced his mother had died early Tuesday at the age of 78.

Kultida Woods, mother of Tiger and a bedrock foundation in his life from his earliest moments to his most recent ventures, died early Tuesday morning, the legendary golfer announced. She was 80 years old.