Albus Dumbledore was killed in Harry Potter and the Half-Blood Prince. He was killed by Severus Snape. The job originally fell upon Draco Malfoy, but he was unable to kill him.
There is not Professor Mergonagor in the Harry Potter series. Professor McGonagall does not die in book 7
No one dies in Professor Layton.
Professor McGonagall doesn't die during the series.
Professor Louis Grant died in 1993
Richard Lawson - professor - died in 1971.
John Malcolm - professor - died in 1954.
Felix Adler - professor - died in 1933.
William Smyth - professor - died in 1868.
John Dickie - professor - died in 1942.
Professor Mike Donovan died in 1918.
Albert Coates - professor - died in 1989.
Georgios Kalafatis - professor - died in 1720.