When 
the daughter of the Ottoman Sultan Süleyman the Magnificent turned 17, two powerful men wanted to marry her. The name of Süleyman’s daughter was Mihrimah which meant in Persian “the sun and the moon.” One of the two men was a provincial governor while the other was the famous Architect Sinan, whose greatest work include the Süleymaniye Mosque in Istanbul. At the time, despite being madly in love with her, Sinan was 50 and already married. So Mihrimah married the governor. Soon thereafter, Sinan was commissioned by the palace to build a Mihrimah mosque in Üsküdar (on the Asian side of Istanbul). When finished, the mosque looked like a woman with her hair reaching down below. After a while, while still in love, Sinan started building a second Mihrimah mosque on a high hill on the European side without being commissioned to do so.
There was another particularity: on March 21, the birthday of Mihrimah, one can see that when the sun is setting behind the minaret of the Mihrimah mosque on the European side, the moon is coming out behind the Mihrimah mosque on the Asian side.