Question: What record did Jacues Piccard's father break?
Sentence (from "Bathyscaphe Trieste"): Trieste is a Swiss-designed, Italian-built deep-diving research bathyscaphe, which with its crew of two reached a record maximum depth of about 10911 m , in the deepest known part of the Earth's oceans, the Challenger Deep, in the Mariana Trench near Guam in the Pacific.
Relevant evidence: No