There are five main sub branches of civil law. These are:
1.Law of persons: Law of persons is the field of law that deals with the concept of person, types of persons, real persons, legal persons, beginning of personality and end of personality, concept of personality, protection of personality, capacity, types of capacity, different categories according to their capacity to act, domicile, kinship, associations (societies) and foundations.
2.Family law: Family law’s main concern is the family, therefore, engagement, marriage, divorce, parental authority are the most important topics. Also guardianship and adaption are other important areas.
3.Law of succession: Law of succession is a field of law in which every real person shall be a part of in some time in their life, the latest when they die. Since all real persons shall die, this field is related to all of us. Legal heirs, reserved portion (statutory entitlement), testamentary disposition, deprivation of statutory entitlement, legacy, contract of succession, abatement and commencement of succession are some of the subjects.
4.Law of property: Law of property’s main subject is the real rights. Real rights are the rights built on a property that give their owner the right to assert against all persons this right. Ownership, hypothec, usufruct are some examples of the real rights. Real rights enjoy the principle of publicity. The tools of publicity are possession for moveable property and land registry for immoveable property. Therefore, the concept of law of property covers possession, land registry and real rights.
5.Law of obligations: Law of obligations is the field of law that mainly deals with obligations. Obligation is a legal bond that ties two persons in such a way that one of them, the creditor, is entitled to demand from the other, the debtor, a certain performance. There are three main sources of obligations in Turkish legal system; contracts, torts and unjust enrichment. In the general part, law of obligations deals with these sources, formation of an obligation, performance, non-performance and some modalities related with an obligation such as penalty clause, condition, joint liability and discharge of obligations. In the special part, specific types of contracts are the main focus point, like sales contract, surety ship contract, rental contract and construction contract.
Civil Code governs the first four sub branches and the Code of Obligations governs the last sub branch.