Abdulah "Avdo" Sumbul (27 April 1884 — 8 February 1915)[2] was Serb Muslim[3][4] literature journal editor and national activist in Austrian annexed Bosnia and Herzegovina.
Sumbul belonged to a group of Serb Muslims who were targeted as enemies by Austria Hungary and persecuted because of their ethnicity.
[9] Vladimir Ćorović emphasize that government of Austria-Hungary perceived and treated Muslims who self-declared themselves as Serbs as enemies of the interest of their state and organized their systematic persecution.
[15] In 1934, based on the order of Yugoslav king Alexander I of Yugoslavia, a turbe mausoleum was built in honor of Avdo Sumbul and Behdžed Mutavelić.
[16] This mausoleums are part of symbolic unity with Chapel of Vidovdan's martyrs on Koševo Christian Orthodox cemetery.