La. Civ. Code art. 263
Current with operative changes from the 2024 Third Special Legislative Session
When a tutor has not been appointed to the minor by father or mother dying last, or if the tutor thus appointed has not been confirmed or has been excused, then the judge shall appoint to the tutorship, from among the qualified ascendants in the direct line, collaterals by blood within the third degree and the surviving spouse of the minor's mother or father dying last, the person whose appointment is in the best interests of the minor.
La. C.C. § 263