The Third Nationalist Party (in Spanish

Spanish language

Spanish , also known as Castilian , is a Romance language in the Ibero-Romance group that evolved from several languages and dialects in central-northern Iberia around the 9th century and gradually spread with the expansion of the Kingdom of Castile into central and southern Iberia during the...

: Tercer Partido Nacionalista, TRN) was a Panama

Panama

Panama , officially the Republic of Panama , is the southernmost country of Central America. Situated on the isthmus connecting North and South America, it is bordered by Costa Rica to the northwest, Colombia to the southeast, the Caribbean Sea to the north and the Pacific Ocean to the south. The...

nian conservative, radical nationalist political party

Political party

A political party is a political organization that typically seeks to influence government policy, usually by nominating their own candidates and trying to seat them in political office. Parties participate in electoral campaigns, educational outreach or protest actions...

.

The Third Nationalist Party was founded in 1959 by Aquilino Edgardo Boyd de la Guardia (a member of the old ruling families and oligarch) and Gilberto Arias Guardia

(son of the former President Harmodio Arias Madrid

Harmodio Arias Madrid

Harmodio Arias Madrid was Panamanian politician. He served as acting President of Panama in January 1931 and again from June 5, 1932 to October 1, 1936 after winning presidential election....

 and nephew of the former President Arnulfo Arias

Arnulfo Arias

Dr. Arnulfo Arias Madrid was president of Panama on three occasions: 1940–41, 1949–51, and for two weeks in October 1968.- Origins :...

).

In the 1950s, Aquilino Boyd was a prominent National Patriotic Coalition

National Patriotic Coalition

The National Patriotic Coalition was a Panamanian conservative nationalist political party....

 (CPN) leader. He served as Foreign Minister of Panama

Panama

Panama , officially the Republic of Panama , is the southernmost country of Central America. Situated on the isthmus connecting North and South America, it is bordered by Costa Rica to the northwest, Colombia to the southeast, the Caribbean Sea to the north and the Pacific Ocean to the south. The...

 (1956-58).

In 1958, Aquilino Boyd left the CPN in a disagreement with then President Ernesto de la Guardia.

Arias supported the Ernesto de la Guardia administration in 1956-1960 and served as Minister of Finance and Treasury (1957-1958).
Aquilino Boyd led the agitation against the Canal Zone

Panama Canal Zone

The Panama Canal Zone was a unorganized U.S. territory located within the Republic of Panama, consisting of the Panama Canal and an area generally extending 5 miles on each side of the centerline, but excluding Panama City and Colón, which otherwise would have been partly within the limits of...

, and delivered the TPN to the National Liberal Party

National Liberal Party (Panama)

The National Liberal Party was a liberal party in Panama. At the last legislative elections, 2 May 2004, the party won 5.2 % of the popular vote and 3 out of 78 seats...

 (PLN) coalition in on the basis of Roberto Francisco Chiari Remón

Roberto Francisco Chiari Remón

Roberto Francisco Chiari Remón was the President of Panama in 1949 and from 1960 to 1964. He belonged to the Liberal Party.-Before being president:...

's nationalist stance. Shortly after the 1960 election Aquilino Boyd lost control of the TPN to Gilberto Arias Guardia.

Boyd withdrew his faction and created the Nationalist Party (PN), which joined the PLN coalition (1964). Gilberto Arias returned the TPN to the CPN coalition for, and is supporting Juan de Arco Galindo (1964).

In 1968 TPN allied with the National Union (UN) and its candidate Arnulfo Arias

Arnulfo Arias

Dr. Arnulfo Arias Madrid was president of Panama on three occasions: 1940–41, 1949–51, and for two weeks in October 1968.- Origins :...

.
All political parties including the TPN were banned by Omar Torrijos

Omar Torrijos

Omar Efraín Torrijos Herrera was the Commander of the Panamanian and National Guard and the de facto leader of Panama from 1968 to 1981...

 after the military coup of 1968.

In 1981 the TPN joined the National Patriotic Coalition

National Patriotic Coalition

The National Patriotic Coalition was a Panamanian conservative nationalist political party....

, National Liberation Movement

National Liberation Movement (Panama)

The National Liberation Movement was a Panamanian right-wing liberal political party.It was created in 1959 by Temístocles Díaz Q., a son of the late President Domingo Díaz Arosemena and a prominent National Patriotic Coalition leader and First Vice-President under Ernesto de la Guardia .A formal...

 and factions that had earlier split off from National Liberal Party

National Liberal Party (Panama)

The National Liberal Party was a liberal party in Panama. At the last legislative elections, 2 May 2004, the party won 5.2 % of the popular vote and 3 out of 78 seats...

 and Republican Party

Republican Party (Panama)

The Republican Party is a Panamanian right-wing political party.Its distant origins lie in the Liberal Renewal Party founded in 1932...

 to form the opposition National Liberal Republican Movement (MOLIRENA).

Abraham Pretto, a leader of TPN, was of the Vice-President of MOLIRENA.