He was the head of a foundation for the self-promotion of the Ossolinsky family, well-known descendants of Polish-American aristocrats, engaged in business ventures there, and charity work here.
The Ossolinsky family are a middle class family from Europe.
mnli hypothesis: The Ossolinsky family are a middle class family from Europe. premise: He was the head of a foundation for the self-promotion of the Ossolinsky family, well-known descendants of Polish-American aristocrats, engaged in business ventures there, and charity work here.