Gabriel de Vallseca
Gabriel de Vallseca, also referred to as Gabriel de Valseca and Gabriel de Valsequa and Gabriel de Vallsecha( before 1408- after 1467) was a Catalan cartographer of Jewish descent connected to the Majorcan cartographic school.
His most notable map is the portolan of 1439, containing the first depiction of the recently discovered Azores islands.
David Ji
David Longfen Ji is an American businessman who co-founded Apex Digital, an electronics manufacturer.
In 2004, he was arrested in China following a dispute with Sichuan Changhong Electric, a supplier owned by the city of Mianyang and the province of Sichuan.
Changhong accused him of defrauding them through bad checks.
Ji was taken, according to an account by his lawyer, to the senior management and told, "I decide whether you live or die."
He has been held in China without charges.
Ji's case highlighted an "implicit racism" in dealings with American businessmen.
As a U.S. citizen he was not granted the same treatment by authorities as non-ethnically Chinese businessmen sharing the same nationality.
Marco Grael
Marco Soffiatti Grael( born June 9, 1989) is a Brazilian sailor.
He and Gabriel Borges placed 11th in the 49er event at the 2016 Summer Olympics.
Gabriel Macchi
Gabriel" Gaby" Macchi( born 2 October 1975) is a Paralympic athlete from Portugal competing mainly in category T12 long- distance events.
Macchi has competed in the 2008, 2012 and 2016 Summer Paralympics, and has won medals at both European and World IPC championships.
Nataliya Smal
Nataliya Nikolayevna Smal( born 10 March 1983 in Koriukivka Raion, Ukraine) is a Ukrainian judoka and sambist.
She competed in the 70 kg event at the 2008 Summer Olympics, where she lost in the third round to Annett Böhm, and the 2012 Summer Olympics where she lost in the first round to Cecilia Blanco.
Scarlet Gruber
Scarlet Gruber( born Caracas, Venezuela), is a Venezuelan actress and dancer.
She is a daughter of and Gabriel" El Chamo" Fernández.
Franz Böheim
Franz Böheim( June 24, 1909 – March 24, 1963) was an Austrian film actor.
Böheim appeared in more than fifty films and television series, including the 1947 film" It's Only Love" in which he played Franz Schubert.
He was the brother of the actors Carlo Böhm and Alfred Böhm.
Jiří Böhm
Jiří Böhm( born 16 December 1987) is a professional Czech football player who currently plays for FK Kolín.
His former club is Viktoria Žižkov.
Charles Heiné
Charles Heiné (1 January 1920 – 10 July 1971) was a French footballer who played as a midfielder.
He played twice for the French national team during the 1946–47 season under Gaston Barreau and Gabriel Hanot.
Harold Guskin
Harold Saul Guskin( May 25, 1941 – May 10, 2018) was an American actor and acting coach.
He coached Glenn Close, James Gandolfini and Gabriel Macht.

Question: Are Jiří Böhm and Gabriel Macchi of the same nationality?
Answer: no