Death and state funeral of Lech and Maria Kaczyński
State Funeral On April 18, 2010

Lech Kaczyński, the fourth president of the Republic of Poland, died on 10 April 2010, after a Polish Air Force Tu-154 crashed outside of Smolensk, Russia, killing all 96 aboard. His wife, economist and first lady Maria Kaczyńska, was also among those killed.
After the death of Kaczyński was announced, a week of mourning was declared by the acting President of Poland, Bronisław Komorowski, spanning 11 to 18 April with a state funeral for the couple held on 18 April. Several countries observed a day of national mourning on the date of the funeral. The couple were buried together in a crypt in the Wawel Cathedral, Kraków, afterwards.
Death
On 10 April 2010, a Polish Air Force Tupolev Tu-154M aircraft crash landed near Smolensk, Russia, killing all 96 passengers and crew. Those killed include Kaczyński, and his wife; the chief of the Polish General Staff and other senior Polish military officers; the president of the National Bank of Poland; Poland's deputy foreign minister; Polish government officials; 12 members of the Polish parliament, including vice-speakers; senior members of the Polish clergy; and relatives of victims of the Katyn massacre. They were en route from Warsaw to attend an event to mark the 70th anniversary of the massacre. The site of the massacre is approximately 19 kilometres (12 mi) west of Smolensk.
The cause of the crash was investigated.
Begin with the source’s own compact description: “Death and state funeral of Lech and Maria Kaczyński” is state Funeral On April 18, 2010. The dossier treats that line as a proposition to test through Death, state and funeral, not as a finished interpretation.
Why this record matters
The phrase “state Funeral On April 18, 2010” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jun 22, 2026. The linked authority identifier is Q2453061. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2010.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Death and state funeral of Lech and Maria Kaczyński”, its source revision and the description used here.
- Expand the search: follow Death and state funeral of Lech and Maria Kaczyński primary sources, Death and state funeral of Lech and Maria Kaczyński archive and Death research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Death and state funeral of Lech and Maria Kaczyński”?
- Which cited source is closest to the event, object or claim?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “Death and state funeral of Lech and Maria Kaczyński” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.