Minister for Trade Union Relations
The Minister for Trade Union Relations (Spanish: Ministro de Relaciones Sindicales) was a Spanish Cabinet position. The holder was considered a minister without portfolio and was responsible for the relations between the Government and the Spanish Syndical Organization (known as Sindicato Vertical, the only union allowed during the dictatorship of Francisco Franco).
Source: Wikipedia — Minister for Trade Union Relations (CC BY-SA 4.0)