There is also evidence that Roxelana provided Suleyman with astute political advice. For example, she was a correspondent of King Sigismund II August of Poland, like her daughter Mihrimah would later be. During her lifetime, the Ottoman Empire experienced peaceful relations with Poland, no doubt partially due to Roxelana’s soothing hand on affairs. Some historians also believed that she may have intervened with Suleyman to control Crimean Tartar slave-trading in her native land—something, she doubtlessly, felt a deep tie with.