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Universidade Lusófona do Porto

Law of Obligations I


The Law of Obligations is one of the most important branches of Civil Law. The curricular unit allows students to acquire knowledge about the fundamental notions of the Law of Obligations and its sources. The knowledge and skills acquired in this curricular unit shall be completed by another discipline during the 2nd semester - Law of Obligations II.



Level of Qualification|Semesters|ECTS

| Semestral | 7

Year | Type of course unit | Language

3 |Mandatory |Português



Recommended complementary curricular units

Introduction to the Study of Law, I and II, and General Theory of Civil Law, I and II

Professional Internship



Part I. Fundamental introductory notions

I. Preliminary considerations: framework, importance, interest, program of study

II. Concept and function of the obligational legal relationship

III. The relationship between the obligational legal relationship and other legal relationships

IV. Assumptions of obligational legal relationship

V. civil obligations v. natural obligations

VI. Principles of Law of Obligations - enunciation

VI. PARTE II: SOURCES (except Torts)

I Contracts;

II Unilateral legal transactions;

III Negotiorum gestio;

IV Unjust enrichment;


At first, the study of the Law of Obligations I allows to provide students with the necessary tools to acquire essential knowledge about the basic notions on this matter. Secondly, it is intended that students acquire knowledge about the sources of Obligations Law (with emphasis on contracts), so that they can identify, enunciate and problematize theoretical and practical issues. Thus, this discipline aims to provide students with the necessary knowledge of legislation, doctrine and jurisprudence in the field of Law of Obligations I. The student must acquire the knowledge taught, must have the ability to resolve practical cases within the scope of the subjects taught and must take a critical attitude towards the arguments presented.

Teaching methodologies and assessment

Continuous assessment:

-The assessment scheme to be applied in the course of Family Law consists of two partial tests (weight: 50%, 50%).

- Duration of partial tests: 1h30 (with 15 minutes tolerance).

- Students with a minimum final average of 10 points are approved.

-Students who have a medium final grade between 8 and 9 values ¿¿will be subject to oral examination. If students choose not to subject the oral exam, they will be evaluated in an recourse examination.

-The regime of discipline does not have oral exams for grade improvement

In written and oral tests, students must be accompanied by a Civil Code, not annotated, as well as all the separate legislation used (not annotated).

Assessment in accordance with ULP's General Regulation on Assessment.


CORDEIRO, António Menezes, Tratado de Direito Civil, VIII - Direito das Obrigações , Coimbra, Almedina, 2017, ISBN 978-972-40-4221-3

COSTA, M. J. Almeida - Direito das Obrigações , 12.ª Ed., Coimbra, Almedina, 2018, ISBN : 9789724040332.

LEITÃO, Luís M. Teles de Menezes ¿ Direito das Obrigações, volume I, 15ª Edição - Reimpressão 2021, Coimbra, Almedina, 2018, ISBN: 9789724073484

VARELA, João de Matos Antunes - Das Obrigações em Geral, volume I, 10.ª edição, revista e atualizada, Coimbra: Almedina, 2021, ISBN: 978-972-40-1389-3.


Office Hours

Nome do docente  

Horário de atendimento


Diana Sofia Araújo Coutinho

Terça-feira à tarde, mediante envio prévio de e-mail.


A designar

Maria Manuela Veloso

A designar

A designar