Article 188Family Code, Art. 188

The written consent of the following to the adoption shall be necessary: (1) The person to be adopted, if ten years of age or over, (2) The parents by nature of the child, the legal guardian, or the proper government instrumentality; (3) The legitimate and adopted children, ten years of age or over, of the adopting parent or parents; (4) The illegitimate children, ten years of age or over, of the adopting parent, if living with said parent and the latter's spouse, if any; and (5) The spouse, if any, of the person adopting or to be adopted. (31a, EO 91 and PD 603)