Poniński
The House of Poniński is the name of an old Polish noble family that derived from the place of Ponin. Members of the family held the title of Prince. Notable members 
Adam Poniński (1732–1798), Polish nobleman, Prince, Marshal of the Sejm, Deputy Crown Treasurer
Adam Poniński (1758–1816), Polish nobleman, Prince, politician (deputy to Grodno Sejm), soldier and officer
 (1896-1968), Polish diplomat and journalist
 née Ponińska (born 1926) Polish World War II resistance fighter, participant in the Warsaw Uprising

See also

Polish-language surnames
Polish toponymic surnames