Question: What record did Jacues Piccard's father break?

Context paragraphs:
Auguste Piccard: Auguste Antoine Piccard (28 January 1884 – 24 March 1962) was a Swiss physicist, inventor and explorer, known for his record-breaking hot air balloon flights, with which he studied Earth's upper atmosphere and cosmic rays, and for his invention of the first bathyscaphe, "FNRS-2", with which he made a number of unmanned dives in 1948 to explore the ocean's depths.

Jeannette Piccard: Jeannette Ridlon Piccard (January 5, 1895 – May 17, 1981) was an American high-altitude balloonist, and in later life an Episcopal priest.  She held the women's altitude record for nearly three decades, and according to several contemporaneous accounts was regarded as the first woman in space.

2009–10 Denver Nuggets season: The 2009–10 Denver Nuggets season was the 43rd season of the franchise, its 34th in the National Basketball Association (NBA).  After their trip the Conference Finals last season, the Nuggets started the season 35-18 before the All-Star break.  Coach George Karl and Carmelo Anthony were the only Nuggets to represent the Western Conference in the 2010 NBA All-Star Game.  During the break, Anthony sported a new haircut.  However, not long after the break, dark clouds gathered around the team as coach Karl was diagnosed with neck and throat cancer.  Adrian Dantley took over and the team struggled in the second half of the season, finishing with a 53-29 record and earned the number 4 seed in the West.  Denver's season ended in the first round with a defeat to the Jazz in six games.

FNRS-2: The FNRS-2 was the first bathyscaphe.  It was created by Auguste Piccard.  Work started in 1937 but was interrupted by World War II.  The deep-diving submarine was finished in 1948.  The bathyscaphe was named after the Belgian Fonds National de la Recherche Scientifique (FNRS), the funding organization for the venture.  FNRS also funded the FNRS-1 which was a balloon that set a world altitude record, also built by Piccard.  The FNRS-2 set world diving records, besting those of the bathyspheres, as no unwieldy cable was required for diving.  It was in turn bested by a more refined version of itself, the bathyscaphe "Trieste".

FNRS-1: The FNRS-1 was a balloon, built by Auguste Piccard, that set a world altitude record.  It was named after the Belgian Fonds National de la Recherche Scientifique, which funded the balloon.

She Lives!: She Lives!  is a 1973 made-for-television movie about a young couple, Andy and Pam (played by Desi Arnaz, Jr. and Season Hubley) who meet after Andy places a singles ad in his college newspaper.  Pam advises him to put a response to her letter in the "Who's Next" album at a local record store.  He does and they meet.  They are instantly attracted to each other and in the next scene they are living together.  Andy has to overcome the objections of his father and brother (his mother having died a year earlier) and he and Pam get jobs and live in her studio apartment.  They are happy until Andy discovers a lump in Pam's neck.  They go for tests and find out Pam has Hodgkin's Disease.  They are devastated and Pam goes to a therapist to help cope with the sad news.  Pam considers suicide, but Andy talks her out of it by convincing her that they will fight.  They find a doctor who gives Pam experimental treatments that almost kill her.  They travel to San Francisco to meet with another doctor.  At first, he won't take Pam's case but eventually he is swayed by Andy's tearful appeal.  He turns out to be the doctor who gets Pam's disease into remission.  As the young lovers run throughout the streets of San Francisco celebrating the news they come upon a group of girls playing hopscotch.  Andy borrows the chalk from one of them and the girl tells him, "Okay, but don't break it."  He responds, "I will never break anything as long as I live."  He writes She Lives!  in chalk and runs through the streets shouting it.  He turns and there is Pam, the girl he loves.  As the movie ends, Jim Croce's "Time in a Bottle" plays over the credits.

Break Up, Break Down: Break Up, Break Down is the first studio album by the Reigning Sound.  It was released on May 15, 2001 by Sympathy for the Record Industry.  The album was the band's second release, following their debut 7" single "Two Sides to Every Man," by three months.  Its country-folk melodies stood in stark contrast to some of frontman Greg Cartwright's earlier work with bands such as the Compulsive Gamblers and the Oblivians, and set an early blueprint for the sound the band would explore on their subsequent releases.  Break Up, Break Down featured the first incarnation of the Reigning Sound; Greg Cartwright on lead vocals and guitar; Alex Greene on organ, piano, guitar, and backing vocals; Jeremy Scott on bass and backing vocals; and Greg Roberson on drums.

Don Walsh: Don Walsh (born November 2, 1931) is an American oceanographer, explorer and marine policy specialist.  He and Jacques Piccard were aboard the bathyscaphe "Trieste" when it made a record maximum descent into the Mariana Trench on January 23, 1960, the deepest point of the world's oceans.  The depth was measured at 35813 ft , but later and more accurate measurements have measured it at 35,798 feet (10,911 m).

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.  On 23 January 1960, Jacques Piccard (son of the boat's designer Auguste Piccard) and US Navy Lieutenant Don Walsh achieved the goal of Project Nekton.

Jules Piccard: Jules Piccard, also known as Julius Piccard (20 September 1840, in Lausanne – 11 April 1933, in Lausanne) was a Swiss chemist.  He was the father of twins Auguste Piccard (1884–1962) and Jean Felix Piccard (1884–1963), both renowned balloonists.

Supporting paragraphs: Bathyscaphe Trieste Auguste Piccard
Answer: hot air balloon flights