After the death of the father, the mother shall have the guardianship of the minor children, if she should wish it, provided she remains a widow; and she shall make an inventory of the property to which the children are entitled, by means of which their rights to their inheritance may be established. But if the mother should marry again, any one of the sons who has attained his majority, that is, who has reached the age of twenty years, may assume the guardianship of his younger brothers; and shall see that their property is not alienated, or dissipated through neglect, by themselves, or by any one else. But, in case he himself should use it up, or sell it, or give it away, or permit it to be lost through his own negligence: as soon as his brothers shall have become of age, he shall be compelled to make restitution out of his own share, of whatever was wasted by him. He shall, however, be allowed the tenth part of the income for the purpose of living, to the end that he may not burden with extravagant expenses what should be reserved for the minor heirs. Where he spends his own money, or uses his own property for the necessaries and business of all, and this fact is brought to the attention of the judge, he shall be reimbursed for his expenditures out of the entire estate left by his father. If any of the brothers should not be of lawful age, or of proper character to undertake the guardianship of orphans, a paternal uncle of a cousin may assume this duty; and if neither the paternal uncle nor his son should be found worthy, then a guardian shall be selected by the other relatives in the presence of the judge. Where neither the mother, nor any one else, assumes the guardianship, an inventory of all the property which the father left shall be drawn up and signed by her and by witnesses, from the number of three to five, and shall be placed in the keeping of any bishop or priest whom the relatives may select, to be delivered to the children when they have attained their majority.