I thought similarly. I think the abuse was outlined in the autobio but can't remember who the victim was/were.
from his wiki page fwiw " The relationship involved numerous incidents of Davis' domestic violence towards Taylor. He later wrote, "Every time I hit her, I felt bad because a lot of it really wasn't her fault but had to do with me being temperamental and jealous."[118][119][120] One reason for his behavior was that in 1963 he had increased his use of alcohol and cocaine to reduce joint pain caused by sickle cell anemia" referencing abuse of Frances Taylor.
and then, same source
" in 2013, The A.V. Club published an article titled "Miles Davis beat his wives and made beautiful music,"[249] In the article, writer Sonia Saraiya praises Davis as a musician, but criticizes him as a person, in particular, his abuse of his wives.[249] Others, such as Francis Davis, have criticized his treatment of women, describing it as "contemptible".[231] "
No explicit reference to Cicely Tyson as a victim of such behaviour.