Iowa Code § 232D.202: Death of parents.

1. The court may appoint a guardian for a minor if both parents are deceased.

2. In appointing a guardian for a minor whose parents are deceased, the court shall give preference to a person, if qualified and suitable, nominated as guardian for a minor by a will that was executed by the parent or parents having legal custody of the minor at the time of the parent’s or parents’ death, and that was admitted to probate under chapter 633.