Olivia de Santiago Concha, 4th Marchioness of Casa Concha

Olivia was born in Santiago on 15 November 1892, as the child of Daniel Santiago Concha Subercaseaux, a civil engineer, and his wife Carolina Valdés Ortúzar.^[1][2] Her paternal grandfather, Melchor Concha y Toro, was a successful businessman and Chilean politician.

In 1916, while her family was staying in Paris, Olivia was portrayed by the Italian painter Giovanni Boldini, who was in his final years. Boldini, who had painted many royals and aristocrats, liked Olivia's portrait (La signora in rosa, "the lady in rose") so much, that he decided to keep it for himself. After a legal battle against the Concha family, Boldini agreed to make a smaller version of the portrait for the buyers. Only in 2016, her son Mariano was able to look at the original painting at the Ferrara museum were it is kept.^[3]

During the first half of the 20th century, Concha y Toro vineyard, the Concha's family business, suffered harsh financial difficulties. Olivia, who had inherited his grandfather's business abilities, was able to put the company back on track. Today, Concha y Toro is the largest producer and exporter of wines from Latin America and one of the ten largest wine companies in the world.^[4]