BERTHA

Set to 5 different clues across 5 published puzzles, most often “Mother of Charlemagne” — The New York Times, Thursday, 24 April 2008.

6 letters

Every clue on record, most used first

Mother of Charlemagneonce
The New York Times — Thursday, 24 April 2008
Big ___ (German gun in W.W. I)once
The New York Times — Thursday, 27 February 2003
"Big" girlonce
The New York Times — Sunday, 1 August 1999
Woman's wide lace collaronce
The New York Times — Sunday, 18 May 1997
W.W.I's Big___once
The New York Times — Friday, 26 January 1996