 Complete the following phrase:  At the end of Greek War of Independence, the three Great Powers formulated the London Protocol of 1829, which established an autonomous Greek state under the rule of a Hereditary Christian Prince. Numerous candidates were considered for the vacant Greek throne, including the French Duke of Nemours, Prince Frederick of the Netherlands and Ottos uncle, Prince Karl Theodor of Bavaria. Even an Irishman named Nicholas Macdonald Sarsfield Codd put himself forward, claiming descent from the Byzantine Palaiologos dynasty. Ultimately, they settled on Prince Leopold of Saxe-Coburg and Gotha, and in the amended London Protocol of 1830 made Greece into a fully independent Kingdom under his rule. Although initially enthusiastic, Leopold was discouraged by the gloomy picture of the countrys stability painted by Ioannis Kapodistrias, Greeces governor, and so rejected the crown, concerns that would prove well-founded when Kapodistrias was assassinated a year later. In 1832 British Foreign Secretary Lord Palmerston convened the 