Antonia Baronin Pilars de Pilar, née Antonia Gabriele Marie Josefa Huberta Elisabeth Maximiliane Freiin von Oer-Egelborg was from 1894 to 1898 Court lady of the Duchess Marie of Mecklenburg-Schwerin née Princess Marie of Windisch-Graetz and from 1911 to 1944 Court lady of Marie's daughter, the Duchess Marie Antoinette of Mecklenburg-Schwerin. Wikipedia