Dowager

n.
  1. (Eng. Law) A widow endowed, or having a jointure; a widow who either enjoys a dower from her deceased husband, or has property of her own brought by her to her husband on marriage, and settled on her after his decease.
  2. A title given in England to a widow, to distinguish her from the wife of her husband's heir bearing the same name; -- chiefly applied to widows of personages of rank.
  3. Queen dowager ,
    the widow of a king.