598.29  Annulling illegal marriage — causes.
  Marriage may be annulled for the following causes:
  1.  Where the marriage between the parties is prohibited by law.
  2.  Where either party was impotent at the time of marriage.
  3.  Where either party had a husband or wife living at the time of the marriage, provided they have not, with a knowledge of such fact, lived and cohabited together after the death or marriage dissolution of the former spouse of such party.
  4.  Where either party was a ward under a guardianship and was found by the court to lack the capacity to contract a valid marriage.
[C73, §2231; C97, §3182; C24, 27, 31, 35, 39, §10486; C46, 50, 54, 58, 62, 66, §598.19; C71, 73, 75, 77, 79, 81, §598.29]
91 Acts, ch 93, §3