According to Luxerazzi:
At the time of the wedding of Hereditary Grand Duke Guillaume and Hereditary Grand Duchess Stéphanie, Grand Duchess Maria Teresa gave a number of symbolic gifts to “Our Lady of Luxembourg”…
…a medallion with a wedding picture of Grand Duke Henri and Grand Duchess Maria Teresa as well as a picture of their five children; a rosary made of rock crystal that once belonged to Grand Duchess Maria Teresa’s grandmother Maria Narcisa Alvarez Tabio; as well as a rosary, inscribed with “New York, January 23, 1945” (her birthday) belonging to Grand Duchess Charlotte, which accompanied her in exile…