Marie Laurence Valérie Orban
- Born on October 19, 1859 in Liège
Parents
- Jules Édouard Orban (1826 - 1895)
- Laurence Lamarche (1829 - 1893)
Family
- Married in 1881 in Liège, with Albert Willem Sloet van Oldruitenborgh (1858 - 1918), issuing
- Madeleine Jeanne Antoinette (1883 - 1984)
- Juliette Laurence (1884 - 1966)
- Louise Anne (1886 - 1986)