Robin had a great piece about the prevalence of bad mothers in the romance genre, but there are romances that celebrate the influence of great mothers. The first that comes to mind for me is Violet Bridgerton, the grand dame of the Bridgerton series penned by Julia Quinn.
Another famous and well loved mother is Helena, the Comtesse d’Lisle. Helena is the mother Sylvester Sebastian, Devil Cynster, in Devil’s Bride by Stephanie Laurens. Famously or infamously, Devil’s father cheats on Helena and presents her with a bastard (Richard, aka Scandal, story is Scandal’s Bride) to raise which she does with aplomb. Helena has her own story in The Promise in a Kiss (Cynster Novels).
For Mother’s Day, what better way to celebrate that recommending books that feature great mothers.