Margaret Pedler 
The Lamp of Fate [EPUB ebook] 

In like manner had sprung to life the love between Hugh Vallincourt and Diane Wielitzska, and rarely has the web of love enmeshed two more dissimilar and ill-matched people—Hugh, a man of seven-and-thirty, the strict and somewhat self-conscious head of a conspicuously devout old English family, and Diane, a beautiful dancer of mixed origin, the illegitimate offspring of a Russian grand-duke and of a French artist’s model of the Latin Quarter.