Ecumenical Patriarch Vartholomaios, the spiritual leader of Orthodox Christians, is to lead a service at the semi-autonomous monastic community of Mount Athos on October 16 to mark 100 years since it became part of the Greek state.

According to a decree passed by the monks on October 3, 1913, the community was considered part of the Greek state from that point on.

This was also set out in the international treaties of London (1913), Bucharest (1913), Neuilly (1919), Sevres (1920) and Lausanne (1923).