Roberto Ivens was a famous Portuguese explorer of Africa, a colonial administrator and a Portuguese Navy official. Roberto Ivens was the son of Margarida Júlia de Medeiros Castelo Branco and Robert Breakspeare Ivens [b1822]. William Ivens,Robert's Father,and Roberto's Grandfather,died in 1857.[Not 1800, as stated.]He was awarded the Ivens Coat of Arms by George lll, in 1816. Wikipedia
Roberto Ivens deu conta das suas expedies nos livros De Benguela s Terras de Iaca, 1881, e De Angola Contracosta, 2 volumes, 1886. www.vidaslusofonas.pt/roberto_ivens.htm
The definitive Wikipedia entry for Roberto Ivens. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Roberto_Ivens
