<prompt> Translate the following text to SwahiliHe 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.  <response>: Alikuwa mkuu wa msingi wa kujitangaza kwa familia ya Ossolinski, wazao maarufu wa aristocrats wa Kipolishi-Amerika, kushiriki katika biashara huko, na kazi ya hisani hapa. 