NASHVILLE, Tenn. (WZTV) — The mother of legendary NASCAR driver Dale Earnhardt and grandmother to Dale Jr. has passed away at the age of 91 according to NASCAR.

Martha Earnhardt passed away Christmas Day per a statement from grandchildren Dale Earnhardt Jr. and Kelley Earnhardt Miller.

The statement, also shared on Twitter, states they are grieving her loss and "begin to imagine life without" their beloved "Mamaw." "We find solace in knowing she is at peace in eternal glory and in joyous reunion with her husband Ralph and sons Dale, Randy, and Danny."

The statement adds: "She was not just the matriarch to our family, but she was the matriarch to multiple generations of race fans."