Maria Helena Kaczyńska (Polish pronunciation: [ˈmarja kaˈt͡ʂɨɲska]; née Mackiewicz; 21 August 1942 – 10 April 2010) was the First Lady of Poland from 2005 through 2010. She was the wife of President Lech Kaczyński.
On 10 April 2010, 10:41 MSD (06:41 UTC), Maria Kaczyńska, and her husband, Polish President Lech Kaczyński, died when the Polish Air Force Tupolev Tu-154M they were aboard crashed while attempting to land at Smolensk-North Airport in the Russian city of Smolensk. All 89 passengers on board and the 7 crew members were killed.