There's one mourner, though, whose heart is likely aching the most: the president's identical twin brother, Jaroslaw Kaczynski.
The brothers were born within an hour of each other on June 18, 1949, and their lives were intertwined, from attending Mass together, to starring in a film side by side as boys, to entering the world of Polish politics.
On Sunday, the late president's body arrived back in Poland from Russia, where his plane crashed Saturday and killed nearly 100 people, including his wife and many other members of Poland's elite. His coffin was carried by soldiers on the airport tarmac. After Lech Kaczynski's daughter paid her respects, Jaroslaw Kaczynski kneeled before the coffin and appeared to be whispering something as he got close, The New York Times reported.
Jaroslaw and Lech were said to have done almost everything together. When they were 12, the blond brothers, indistinguishable except for a mole on Lech's cheek, starred in the movie version of a popular Polish children's story, "The Two Who Stole the Moon." As devout Roman Catholics, they attended Mass together, and studied law, the Times noted, and they entered politics, with Lech becoming president and Jaroslaw prime minister.