Persons A When Law Takes Effect Doctrine Article 2 of the Civil Code Tanada v. Tuvera “Meaning of the phrase unless it is otherwise provided” B Ignorance of the Law Article 3 of the Civil Code Tanada v Tuvera C Retroactivity of Laws Article 4 of the Civil Code This rule is not absolute D Mandatory or Prohibitory Laws Article 5 of the Civil Code Barcelote v Republic E Waiver of Rights Article 6 of the Civil Code F Presumption and Applicability of Custom Article 11 of the Civil Code Yao-Kee v Sy-Gonzales G Legal Periods Article 12 of the Civil Code In computing the period the first day is excluded H Territoriality Principle Article 14 of the Civil Code Counterpart Article 2 of Criminal Law I Conflict of Laws Lex Nationalii- Nationality Principle Article 15 of the Civil Code Lex Rei Sitae Article 16 of the Civil Code National law of the Decedent Lex Loci Celebrationis Article 17 of the Civil Code Article 815 and 816 of the Civil Code- WILLS Doctrine of Renvoi Renvoi is a procedure whereby a jural matter presented is referred by the conflict of laws rules of the forum to a foreign state, the conflict of law of which, in turn, refers the matter to the law of the forum or a third state J Human Relations in Relation to Persons Article 19, 20, 21 Standards of right and the performance of duty K Capacity to Act Natural and Juridical Persons Article 1327 of the Civil Code Article 234 of the Family Code Republic Act 6809 Restrictions on Capacity to Act Article 38 and 39 of the Civil Code Article 1390 (1) of the Civil Code Article 1403 (3) of the Civil Code Article 40 and 41 of the Civil Code Seven Month Rule 24 Hour Rule Birth and Death of Natural Persons Juridical- Article 47 of the Civil Code Natural- Article 42 of the Civil Code Death can be actual and presumptive Presumption of Survivorship Article 43 of the Civil Code L Surnames Article 370 of the Civil Code- Women Article 364 of the Civil Code- Children (Alanis v CA) (Alfon v Republic) Article 368 of the Civil Code and Article 176 of the Family Code- Illegitimate Children (Grande v Antonio) M Rules Governing Persons Who are Absent Article 384 of the Civil Code- Ordinary Absence Article 390 and 391 of the Civil Code- Presumptively Dead (Tadeo-Matias v Republic) Article 41 of the Family Code- Remarriage Marriage A. General Principles Article 1 of the Family Code Essential and Formal Requisites Article 2 and 3 of the Family Code Article 4 and 35 (2) of the Family Code J Mixed Marriages and Foreign Divorce Article 26 of the Family Code (Republic v Manalo) K Void Marriages (See Tan-Andal v. Andal, G.R. No. 196359, May 11, 2021) L Voidable Marriages M Effect of Defective Marriages N Foreign Marriages O Legal Separation P Property Relations Between Spouses 1 Donation Propter Nuptias 2 Void Donations by the Spouses 3 Absolute Community of Property Regime 4 Conjugal Partnership of Gains Regime 5 Separation of Property Regime 6 Property Regime of Unions Without Marriage Judicial Separation of Property