This made Kösem lose her position in Topkapi Palace and she retired in the Old Palace during the reign of her brother-in-law Mustafa I and step-son Osman II .
DET VERB PROPN VERB PRON NOUN ADP PROPN PROPN CCONJ PRON VERB ADP DET PROPN PROPN ADP DET NOUN ADP PRON NOUN PROPN PRON CCONJ VERB PROPN PROPN .