Question: Who was the seventh president of the oldest higher education institution in suburban Long Island?

Context paragraphs:
Peter Diamandopoulos: Peter Theodore Diamandopoulos (September 1, 1928 – April 1, 2015) was a Greek–American academic administrator.  He served as the seventh president of Adelphi University from 1985 until his dismissal in 1997 due to the school's financial problems.

Higher education in Portugal: Higher education in Portugal is divided into two main subsystems: university and polytechnic education.  It is provided in autonomous public universities, private universities, public or private university institutes, polytechnic institutions and higher education institutions of other types.  Higher education in state-run educational establishments is provided on a competitive basis, a system of "numerus clausus" is enforced through a national database on student admissions.  In addition, every higher education institution offers also a number of additional vacant places through other extraordinary admission processes for sportsmen, mature applicants (over 23 years old), international students, foreign students from the Lusosphere, degree owners from other institutions, students from other institutions (academic transfer), former students (readmission), and course change, which are subject to specific standards and regulations set by each institution or course department.  Portuguese universities have existed since 1290.  The oldest such institution, the University of Coimbra, was first established in Lisbon before moving to Coimbra.  Historically, within the scope of the now defunct Portuguese Empire, the Portuguese founded in 1792 the oldest engineering school of Latin America (the Real Academia de Artilharia, Fortificação e Desenho), as well as the oldest medical college of Asia (the Escola Médico-Cirúrgica de Goa) in 1842.

Tabarestan University: Tabarestan Higher Education Institution (TU) (Persian: موسسه آموزش عالی طبرستان Mo'assese āmoozeshe āliy-e Tabarestan‎ ‎ ) (also called Tabarestan University) is an institution of higher education in Formal sciences, Physical sciences, Social sciences, Behavioral sciences and Engineering in Chaloos, Iran.  Tabarestan Higher Education Institution is one of the most prestigious Institution between Institutions and Universities in Iran.  The institution is located in Chaloos near Caspian Sea and Caspian Hyrcanian mixed forests and beside Nowshahr port.

Office of the Independent Adjudicator: The Office of the Independent Adjudicator for Higher Education (OIA) is a company that handles students' complaints against universities within England and Wales.  The OIA does not investigate the merits of the original complaint, which must be done by a court.  It, however, reviews if the higher education institution followed their own procedures.  Its remit is limited to those complaints that have first been taken through the procedures of a higher education institution's own internal system without reaching a satisfactory conclusion in the view of the complainant.  Previously, all complaints to the OIA had to be made within three months of the conclusion of the internal investigation by the higher education institution (which should usually have resulted in issue of a 'Completion of Procedures' letter).  However, the following now applies: the complaint must be completed within one year of your 'Completion of Procedures' letter, except if your 'Completion of Procedures' Letter is dated on or before 8 July 2015 in which case The OIA must receive the Complaint Form within three months of the Letter's date.

University of Kragujevac Faculty of Economics: The Faculty of Economics at the University of Kragujevac is an educational and scientific institution in the city of Kragujevac.  It was established as a department of the University of Belgrade Faculty of Economics on 1 October 1960, and became an independent higher education institution on 16 December 1975.  Since its establishment the Faculty has strived at creating an important position in the country and the region by educating economists, managers, and also through encouraging scientific work of its staff who conducted their research projects in the field of fundamental and applied research.  With this aim, curricula have been improved in order for them to be aligned to the latest scientific and educational trends of the contemporary world.  In 2009, The Faculty of Economics fulfilled all the requirements of the new Serbian Law on Education and became a fully accredited higher education institution.  All three levels of study are accredited: undergraduate, graduate and PhD.

Gonbad Kavous University: Located in the historic city of Gonbad - e - Kavous, Gonbad Kavous University is the major higher education institution in the eastern part of Golestan Province, Iran.  Officially accredited/recognized by the Ministry of Science Research and Technology, Iran, the University is a public and coeducational higher education institution and it offers courses and programs leading to officially recognized higher education degrees such as bachelor, Master and Ph.D. degrees in several areas of study.  Gonbad Kavous University also provides several academic and non-academic facilities and services to students including a library, as well as administrative services.

Edwardes College: Edwardes College is the oldest higher education institution in Peshawar, the capital of Khyber Pakhtunkhwa Province in Pakistan.  The College, affiliated with the University of Peshawar, has about 3,000 students in sciences, arts and humanities, business administration, higher national diploma and computer sciences.

Adelphi University: Adelphi University is a private, nonsectarian university located in Garden City, in Nassau County, New York, United States.  Adelphi also has centers in Manhattan, Hudson Valley, and Suffolk County.  It is the oldest institution of higher education in suburban Long Island.  For the tenth year, Adelphi University has been named a "Best Buy" in higher education by the "Fiske Guide to Colleges".  The university was also named a 2010 Best College in the Northeastern Region by "The Princeton Review".  The institution was awarded the 2010 Carnegie Classification for Community Engagement by the Carnegie Foundation for the Advancement of Teaching. " U.S. News & World Report" ranked Adelphi University #146 among national universities.

Gansu Agricultural University: Established in 1946, Gansu Agricultural University is a non-profit public higher education institution located in the small city of Lanzhou (population range of 250,000-499,999 inhabitants), Gansu.  Officially accredited/recognized by the Department of Education, Gansu Province, Gansu Agricultural University (GAU) is a large (enrollment range: 15,000-19,999 students) coeducational higher education institution.  Gansu Agricultural University (GAU) offers courses and programs leading to officially recognized higher education degrees such as bachelor's degrees, master's degrees, doctorate degrees in several areas of study.  It is also one of the university on the first list of China's Excellent Agricultural and Forestal Personnel Training Project.  This 70 years old HE institution has a selective admission policy based on entrance examinations.  GAU also provides several academic and non-academic facilities and services to students including a library, sport facilities and/or activities, as well as administrative services.

Higher National Agronomic School: The Higher National Agronomic School ("French": École Nationale Supérieure Agronomique) or ("Arabic": المدرسة الوطنية العليا للفلاحة) previously known as the National Institute of Agronomic (I.N.A) is the only school that trains Agricultural engineers in Algeria and offer training, research and expertise, based on the specialities of the research teams: Food, Sustainable Agriculture, Biotechnology, Environment and Territories.  Students have the opportunity to prepare for an Engineer’s degree in Agricultural Sciences (equivalent to a master's degree).  ENSA is the oldest higher education institution founded in 1905 which is located in (El Harrach, Algiers).

Supporting paragraphs: Peter Diamandopoulos Adelphi University
Answer: Peter Theodore Diamandopoulos