The Grand Duchy of Luxembourg is a small country in the heart of Europe, neighbouring France, Germany and Belgium, counting on 1 January of 2019 613.894 inhabitants on a total area of 2,586 km². Immigration and cultural diversity have become one of the key features in the last years as the share of foreigners has constantly increased to now 47% of the population (Statec, 2019). Recent migrants live on the territory along with ageing migrants who are now close to retirement, as well as earlier generations of migrants. Luxembourg can therefore today be characterized as super-diverse (Vertovec, 2007) and is seen as a sample case for European integration, certainly of high interest also regarding intergenerational family solidarity in the light of migration. We will outline the complex demographic picture in the following sections, focusing on socio-economic aspects as well as social policy issues and have then a closer look on intergenerational family solidarity and future areas of research.