Family thumb|upright=0.85|Leopold and Marie Henriette thumb|upright=0.85|right|Caroline Lacroix and her children, Lucien, Duke of Tervuren and Philippe, Count of Ravenstein. Leopold's sister became the Empress Carlota of Mexico. His first cousins included both Queen Victoria of the United Kingdom and her husband Prince Albert, as well as King Fernando II of Portugal.
family thumb|upright=085|leopold and marie henriette thumb|upright=085|right|caroline lacroix and her children lucien duke of tervuren and philippe count of ravenstein leopold's sister became the empress carlota of mexico his first cousins included both queen victoria of the united kingdom and her husband prince albert as well as king fernando ii of portugal