Some info from Lorenzo Colombo:
Background on the attack:
http://www.naviearmatori.net/ita/foto-242176-1.html
Photo of half-sunken Juventus, mislabeled as Pietro Querini:
https://www.iwm.org.uk/collections/i...ject/205023058
Juventus was owned by the a subsidiary of FIAT, which used it to promote its maritime diesel engines. She was named after Juventus FC, the football club owned by the Agnelli family (owners of FIAT).
All the best
Andreas