Committee of Ministers of the Council of Europe treaties. Article 15.a of the Statute states that the Committee of Ministers of the Council of Europe "shall consider the action required to further the aim of the Council of Europe, including the conclusion of conventions and agreements". Over 190 treaties have now been opened for signature. The European Convention of Human Rights of 1950 is one of the best known Council of Europe treaties and the one with the strongest supervision mechanism by the European Court of Human Rights in Strasbourg and the Committee of Ministers. The text of any treaty is finalised when it is adopted by the
President of the European Council facing Europe, but was overtaken by the Greek economic crisis. The role of "President-in-Office" of the assembled European Council was performed by the head of state or government of the member state currently holding the Presidency of the Council of the European Union. This presidency rotated every six months, meaning there was a new President of the European Council twice a year. The role as President-in-Office was merely a "primus inter pares" role among other European heads of state or government. Being primarily responsible for preparing and chairing the meetings of the European Council, the role had no executive powers