In response to attempts by the New Zealand Company to establish a separate colony in Wellington, and mindful of French claims in Akaroa, Hobson, appointed as Lieutenant-Governor on 14 January 1840, declared British sovereignty over all of New Zealand on 21 May 1840. He published two proclamations published in the "New Zealand Advertiser and Bay Of Islands Gazette" issue of 19 June 1840. One "assert on the grounds of Discovery, the Sovereign Rights of Her Majesty over the Southern Islands of New Zealand, commonly called 'The Middle Island' (South Island) and 'Stewart's Island' (Stewart Island/Rakiura); and the Island, commonly called 'The Northern Island', having been ceded Sovereignty to Her Majesty". The second proclamation expanded on how sovereignty over the "Northern Island" had been ceded under the treaty signed that February.