The statutes, and the constitutional provisions succeeding them, creating the separate estate of a married woman, promise to be as fruitful source of contention, as has been the statute of frauds. So far as this case involves the interpretation, or the construction, or the operation of these statutory and constitutional provisions, a safe anchorage is found in an unbroken current of judicial decisions, as obligatory on the judicial conscience, as the statute and the mandate of the constitution. While husband and wife may by an instrument in writing, executed in the mode prescribed by the statute, sell, they cannot pledge, or mortgage, the separate estate of the wife. The power conferred by the statutes and the constitution, (and it is strictly, narrowly enabling,) is to sell, converting the thing sold into money, or its equivalent, and no other power can be exercised, — Peeples v. Stolla, 57 Ala. 53. The mortgage to the appellants sought to be foreclosed, conveying the statutory separate estate of the wife, is voidable because of the incapacity of the husband and wife to execute it. Infancy of either or both, would not incapacitate them, and avoid the mortgage so positively.
The relation of husband and wife, as it was defined at common law, the statutes and the constitution preserve. A destruction of it would have offended the moral sense of the community, and would have affected the whole social organisation. The capacity of the wife to hold property, real or personal, is enlarged, but it is simply a capacity to hold, without a power to dispose, or to manage, control, or to take the rents and profits, or the income. This remains in the husband, as at common law; but to accomplish the purposes of the statute, he takes these not only as husband, but as trustee, freed from all liability to account for them. The liability of maintaining the family, the common law imposes on the husband, remains undiminished, and the right its inseparable incident, to regulate and control the domestic expenditures. The income, the profits of the estate the wife holds, he must apply to the maintenance of the family. If he fails in the duty he may be removed from the trusteeship of the estate of the wife; and those who supply the wants of the wife, or of her family, of the children of the marriage, if facts exist, which at common law, would render the husband liable in invitum, have a legal remedy against the estate. *574Code of 1876, § 2711. Whenever the husband from any cause becomes incapable of, or unfit for the discreet management and control of the statutory separate estate, the wife may procure his removal from the trusteeship. When he is removed by a decree of the Court of Chancery, “ the wife shall have the same control over her estate, and the rents, issues and profits thereof, as if she was a femme sole, and may sue and be sued in her own name, but the husband is not liable for her acts or contracts.” — Code of 1876, §§ 2717-18. The result of the removal of the husband from the trusteeship, is, that as to her statutory separate estate, the wife becomes a femme sole, and her power of disposition is akin to, and as great as that which in a court of equity, she could have over her equitable separate estate. She may pledge or mortgage it as security for her own debt or the debt of her husband. — Bell v. Locke, 57 Ala. 242.
It is insisted for the appellants that the true construction, and the real operation of the decree of the Court of Chancery, under which Mrs. Fitzpatrick became the purchaser of the lands conveyed by the mortgage, was the removal of her husband from the trusteeship of her statutory estate, and thereby she became a femme sole, with capacity to execute the mortgage. The decree is silent as to the removal of the husband from the trusteeship of the statutory estate of the wife. It proceeds no farther than to ascertain and compel the husband to account for so much of the estate as he had converted. It is manifestly a matter of unmixed difficulty to determine what particular facts attending a conversion by the husband, of the statutory estate of the wife, would justify of require his removal from the trusteeship. Though a trustee, he is husband, and as husband be is converted into trustee. The peace of the family — the harmony of the relation would be disturbed, if all his acts were to be measured by the rules by which the conduct of a trustee not sustaining this relation are measured. A trustee, the trust itself creating the fiduciary relation, resting under a large liability to account, would be derelict in duty often, and the dereliction would afford just cause for his removal, when the same conduct in the husband would be innocent. Each case rests in its own' particular facts, and when unfitness is not chargeable, the intention of the husband in the particular acts which render him liable to account as a trustee to the wife, will control in determining whether the extreme measure of removing him from the trusteeship shall be adopted. Certain it is, in this instance, the Court of Chancery did not expressly adopt it. To infer it by argument or construction from the decree, would be in violation of the principle, that an estoppel *575is not to be inferred by argument, and that a judgment or decree is conclusive of matters only, which are decided, or necessarily involved in the issue and decision. If the husband had appealed from the decree, and assigned for error, that he was improperly removed from the trusteeship of the statutory separate estate of the wife, the answer would have been without hesitation, the assignment was not supported by the record — that no such decree had been rendered. The same answer must now be made, and the mortgage can derive no support from that decree — it does not enlarge the capacity of the husband and wife to alien the statutory estate of the wife. We concur in the decree of the Chancellor, and it is affirmed.