Question: When did the man die whom Berlin Tegel Airport was named after?
Sentence (from "Berlin Tegel Airport"): Berlin Tegel "Otto Lilienthal" Airport (German: "Flughafen Tegel "Otto Lilienthal"" ) (IATA: TXL, ICAO: EDDT) is the main international airport of Berlin, the federal capital of Germany.
Relevant evidence: Yes