Paranhos became the unacknowledged, de facto commander-in-chief.[94] López was found and killed on 1 March 1870, bringing the war to an end.[95] On 20 June 1870 the Emperor granted Paranhos the title of Viscount of Rio Branco ("White River", the name of a river that Paraguay claimed as its border with Brazil) with the added Grandeza ("Greatness") distinction.[96] After returning to Brazil, Rio Branco became an ordinary member of the Council of State on 20 October 1870.[92]