Haseki was the favourite concubine of an Ottoman Emperor in the times of Ottoman Empire

Ottoman Empire

The Ottoman EmpireIt was usually referred to as the "Ottoman Empire", the "Turkish Empire", the "Ottoman Caliphate" or more commonly "Turkey" by its contemporaries...

. The haseki had an important place in the palace, being the second most powerful woman of the harem

Harem

Harem refers to the sphere of women in what is usually a polygynous household and their enclosed quarters which are forbidden to men...

 after the valide sultan

Valide Sultan

Valide Sultan was the title held by the mother of a ruling Sultan in the Ottoman Empire. The Turkish pronunciation of the word Valide is . The title is sometimes translated as Queen Mother, although the position of Valide Sultan was quite different.The position was perhaps the most important...

, the mother of the emperor. Hasekis usually had chambers close to the Emperor's chamber. Also, since the hasekis were the women that the Emperor mostly went to bed to, they were generally the mother of the heir apparent. Nonetheless, a haseki was rarely a wife and didn't have a solid position in the palace. She could lose her state all at once, like Mahidevran Sultan did when Hürrem Sultan

Roxelana

Haseki Hürrem Sultan was the wife of Süleyman the Magnificent of the Ottoman Empire.-Names:Sixteenth-century sources are silent as to her maiden name, but much later traditions, for example Ukrainian folk traditions first recorded in the 19th century, give it as "Anastasia" , and Polish...

got her place.