After the overthrow in 1862 of the first king of the independent Greek state, Otto of Bavaria, a plebiscite in Greece was initiated on 19 November 1862, with the results announced in February the following year, in support of adopting Prince Alfred of the United Kingdom, later Duke of Edinburgh, to reign as king of the country. The candidacy of Prince Alfred was rejected by the Great Powers. The London Conference of 1832 had prohibited any of the Great Powers' ruling families from accepting the crown of Greece, while Queen Victoria was opposed to such a prospect.