 During his short reign as the governor-general, he alternatively ruled in his diocese in Nueva Segovia and the government in Manila.On January 2, 1749, Arechederra welcomed the Sultan of Sulu Azim ud-Din (alternatively spelled as "Alimuddin") who sought refuge to the Spanish colonial authorities.Alimuddin I was previously ousted from his position as the sultan in a coup staged by his younger brother, Bantilan who seized the throne.