Tanaquil, aka Gloriana, the titular fairy queen in Spenser's poem The Faerie Queene (1590), a representation of Elizabeth I: "He [Oberon] dying, left the fairest Tanaquil / Him to succeed therein, by his last Will: / Fairer and nobler liveth none this hou
Tanaquil, the heroine of Tanith Lee's Unicorn trilogy (the young daughter of a powerful sorceress, who brings a unicorn to life)
Origin: Latinization of the Etruscan Thanchvil (or Thanchivil, Thancvil, Thanachvil, Thanacvil, Than(a)qvil, etc.), a theophoric name, Thana + cvil, "gift of Thana" (probably from the name of a lost Etruscan goddess, Thana)
Also pronounced like tranquil: TAN,a,quill