 Complete the following phrase:  In 1630, Sweden intervened into the Thirty Years War on the side of the Protestants. On 27 July, Magdeburgs former administrator Christian Wilhelm von Brandenburg slipped into the city, seizing back power. Christian Wilhelm immediately declared his allegiance for Sweden. Falkenberg was appointed to the rank of Commandant and sent to Magdeburg, which he managed to enter in October by disguising himself as a sailor. He then presented the citys council with a letter reassuring them of Swedens support in their struggle against the Holy Roman Empire and the Catholic League. Soon afterwards, Imperial general Gottfried Heinrich Graf zu Pappenheim chased Magdeburgs militia into the city, imposing a 