RMS Lancastria - Wikipedia
I have been thumbing through Hugh Sebag-Montefiore's
Dunkirk: Fight to the Last Man and the last Chapter before the Epilogue is on "The Sinking of the Lancastria".
More life lost in this ship than on
The Titanic. But the story seemed to be suppressed quite a bit. It happened a few weeks after the last of the evacuations from Dunkirk on June 17, 1940.