Euterpe Sgouta Ionides married Alexander Constantine Ionides (1810–90) in Constantinople, before settling in London. They had five children, Constantine Alexander Ionides (1833–1900), Aglaia Ionides (1834–1906), Luke Alexander Ionides (1837–1924), Alexander Alexander Ionides (1840–98) and Chariclea Anethea Euterpe Ionides (1844–1923).
They were patrons of Whistler, and he enjoyed the hospitality of their house in Tulse Hill and, from 1864, 1 Holland Park.
'Constantine Ionides Bequest Study Guide', V&A.
'Family of Alexander Constantine IONIDES and Euterpe SGOUTA', Rootsweb.
'Euterpe-Ionides', GENI website.