Perhaps by Henrieta Delavrancea Gibory, ( checking the architect identity)
famous woman architect, architect of many Balcic villas Romania's tenure of Southern Dobrudjea - Dobrogea de Sud
sister of Cella Delavrancea, violinist, author, professor of violin
one of the best friends of Queen Marie of Romania
and Princess Ileana of Romania
( Princess Ileana = Mother Alexandra - Orthodox Monastery of Transfiguration Elwood City Pensilvania, USA from 1967)