From 1915 to 1990, the leadership of AMORC was entrusted to the Office of an Imperator, who was solely responsible for all doctrine and ritual of the Order, as well as a corporate president who sat at the head of the board of directors, which was responsible for determining all corporate matters related to the organization. When AMORC reorganized in April, 1990, the dual function of the Office was merged into one position, that of President of the worldwide AMORC organization. However, internally, the President was still referred to by the traditional title of Imperator. In addition to the Imperator, each Grand Lodge has a Grand Master.