 Complete the following phrase:  At the beginning of the seventeenth century he arrived at the court of King Władysław IV, where he quickly gained considerable influence, and most notably was appointed the starost of Sochaczew. In 1640, for the first time, he became a senator in the Sejm parliament despite the scandal before the meeting of the parliament he was accused of rape. In 1645 he was appointed the Speaker of the Chamber of Deputies. Following this, in the name of the king, he was involved in the secret negotiations with the Cossacks that would support Poland in the Turkish expedition, however in 1646, when the secret case came out to the public, the nobles and senators of the Sejm, opposed the campaign. At the same time Radziejowski gained the influence at the court of the queen, appearing on the same parliament to defend her royal interests. In 1648 he participated in the 