Catherine's mother. Elena would go on to marry Prince Albert of Saxe-Altenburg and become Duchess Helene of Mecklenburg-Strelitz. After her husband's death she remarried, but had no issue from either husband. Catherine's third child, Duke Georg Alexander of Mecklenburg-Strelitz, was born on 6 June 1859 at the family's estate in Remplin, Germany. He would marry one of Catherine's ladies in waiting, Natalia Feodorovna Vanljarskaya, and have four children. Catherine severely disapproved of the marriage, and it became a point of contention between herself and her son until her death. Another daughter was born sometime in 1861 named Maria-Frederica who died soon after her birth. Finally on 17 June 1863, Catherine gave birth to her final child, Charles Michael, Duke of Mecklenburg, at Oranienbaum, Russia. He would never marry nor have issue, but lived much of his life in Russia and managed to flee shortly after being arrested following the February Revolution. Her husband died in June 1876 at the age of fifty, and Catherine would outlive him by eighteen years. Later life and extensive charitable works Catherine enjoyed a high position in St. Petersburg society, having her own court, and was "a strict woman, well aware of herself and her rank." She was often seen in somewhat old-fashioned dresses containing much lace. By 1870, she had been made chairwoman of the St. Petersburg Women's Patriotic Society, which she had been a member of since 1847 and began to devote more time to helping her mother with some of her foundations. When her mother died in 1873, Catherine inherited the Mikhailovsky Palace which she used to continue many traditions begun by Elena involving the use of the palace for various arts and handicrafts exhibitions. She also began to take much more of an interest in the work begun by her mother and the list of charities she was patroness to grew exponentially. An incredibly small selection of these charities and organisations includes: the St. Helena School the Elisabeth Hospital for Young Children the Clinical Institute (now the Institute for Advanced Medical Studies) the Frebelev Society the Berlin Society of Art Lovers She was also known to help almost everyone who applied to her for monetary assistance via petitions which she accepted each year around the major holidays. When Alexander II of Russia was assassinated in 1881, Catherine was asked by the mayor of St. Petersburg to help arrange a memorial to