Millicent; married by 1193 Hervey Bagot later de Stafford (on acquiring the de Stafford inheritance through his wife; died by 12 May 1237) and died by Jan 1224/5. [Burke's Peerage]
Note; Burke's Peerage seems to indicate that Millicent is sister of Robert de Stafford & Basilia, rather than a daughter. The dates work better keeping her as a daughter?