A kind of ‘holy trinity’, characteristic of the Alevi community in Turkey.
Left: Ali, the cousin and son-in-law of Muhammad, who was murdered in 661 AD in the Great Mosque of Kufa.
For the Alevi (and more generally Shia) Islam, he is the last of the rightful successors of Muhammad.
Right: Hacı Bektaş Veli, a 13th century Muslim mystic, humanist and philosopher who lived in Anatolia. His teachings form the base of Alevi way of life and spiritualism.
In the middle: Atatürk. As a minority often persecuted by the Sunni majority in the past, Alevis tend to emphasize secular government, as Atatürk established it in Turkey.

Alevism (Turkish: Alevîlik) is a religious group with origin in Shia Islam that combines Anatolian folk Sunni with Sufi elements such as those of the Bektaşi Sufi Order. Believers live almost entirely in Turkey, with minorities in the Balkan, Crimea, the Caucasus, Cyprus, Hungary, Iran, Tatarstan and the Turkish Diaspora.
Alevism is also a group identity, which is variously interpreted as cultural (emphasizing special traditions of poetry, music and dance), humanistic and/or political - whether leftist or Kemalist. Their number is currently estimated about 15-25 million worldwide.

Correspondent: J.M.Criel, Antwerpen.
Source (among others): Wikipedia.