His descendants played an important role in the defence of this most eastern Austrian province and were counted among the honorables of its capital Czernowitz (nowadays: Chernivtsi, Чернівці, Ukraine).
Hugo II was born 2 October 1852 in Klausenburg (the present Cluj-Napoca in Rumania) where his father Vladimir Count Logothetti (1822–1892) was serving as an officer in the army.
After secondary school in Uherské Hradiště, Hugo II entered the 54th Regiment of the Line in Olomouc as a volunteer, but had to quit service due to poor health in 1871.
From September 1883 he was attaché in Constantinople, where in 1866 he became embassy secretary and became acquainted with the Austrian-Hungarian diplomat Julius baron Zwiedinek von Südenhorst (1833–1918), his later father-in-law.
On 17 July 1886 Logothetti married Frieda Barbara Baroness Zwiedinek von Südenhorst (1866–1945) in the church of St. Maria Draperis in the European quarter of Constantinople, Pera.
He held this function till 1897 when he became consul-general of Austria-Hungary in Rumania at Galati where he was at the same time Austrian-Hungarian emissary in the European Danube Commission.
Because of growing tension in the Balkans and the Near East it was necessary to provide the legation in Persia with an experienced diplomat with good knowledge of land and language.
He left his family at home and returned alone to Teheran where he was arrested – against all diplomatic customs – by the Russians who deprived him of all money and sent him through Sweden back to Europe.
Hermine (Meta) married with the Hungarian judge Géza de Ertsey and the youngest daughter Carmen with the Moravian engineer Lothar Schmid.
In 1942 Felix, his wife and his son Deodat were murdered during a fight between Communist Jugoslavian partisans with Italian occupation troops on the hereditary castle of the family Barbo, Watzenberg Manor (Castello Dob) in present Slovenia.