Canonically a legendary fat fuck, too. He raped a shitton of women, and when he died they burned his body and legend has it that his corpse burned for days from all the fatty oil in his body
She's not directly referenced in the novel, just a mention of family members getting important positions, but she's mentioned in the historical record:
From "Records of the Three Kingdoms," in the biography of Dong Zhuo, citing "The Book of Heroes": "His granddaughter was named Bai, and she was still under fifteen years old and had not yet worn hairpins when she was titled Lady of Weiyang."
chaosghost: context: there's this anime/light novel called "A Salad bowl of eccentrics". two ROTK nerds were talking about who their favorite ROTK is, Dong Bai was one of the picks because one of the characters like another IRL isekai LN/manga adaptation featuring Dong Bai, "The legend of Dong Bai". the other character said "why would you like a walking