The Humbaraci (pronounced Hoom - Bu - Ru - Jah) were a corps in the Kapikulu army organisation. They were called as “humbaraci” as they thrown grenades (humbara) with mortars.
The grenades, made of a round iron and fllled with gunpowder, iron and lead pieces, were thrown in two ways; by hand or with mortar. The grenadiers were classified in two groups: the ones who made grenade and the others who used grenade. in the peace times, they were responsible for the security of Beyoglu and Tophane areas.
Selim iii, the 28th Ottoman Sultan, used to go out and walk among the people in grenadier suit, observing the public order and giving orders to the grand vizier to solve the problems he observed.