After Russia occupied the Danubian Principalities, Henry convinced Frederick and Archduchess Maria Theresa of Austria that the balance of power would be maintained by a tripartite division of the Polish-Lithuanian Commonwealth instead of Russia taking land from the Ottomans. Under pressure from Prussia, which for a long time wanted to annex the northern Polish province of Royal Prussia, the three powers agreed on the First Partition of Poland. This was proposed under the threat of the possible Austrian-Ottoman alliance. Only token objections were however raised by Austria, which would have instead preferred to receive more Ottoman territories in the Balkans, a region which for a long time had been coveted by the Habsburgs. The Russians also withdrew from Moldavia away from the Austrian border. An attempt of Bar Confederates to kidnap King Poniatowski on 3 November 1771 gave the three courts a pretext to showcase the "Polish anarchy" and the need for its neighbors to step in and "save" the country and its citizens.