Guglielmo Marconi
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Guglielmo Giovanni Maria Marconi (1874 - 1937)

Guglielmo Giovanni Maria Marconi aka First Marquis of Marconi
Born in Bologna, Italymap
Ancestors ancestors
Brother of [half]
Husband of — married 16 Mar 1905 in St Georges, London, England, United Kingdommap
Husband of — married 1927 [location unknown]
Descendants descendants
Father of , , and [private daughter (1930s - unknown)]
Died at age 63 in Rome, Italymap
Profile last modified | Created 25 May 2014
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Notables Project
Guglielmo Marconi is Notable.
Guglielmo Marconi has Italian Roots.


Guglielmo Marconi, 1st Marquis of Marconi, was an Italian inventor and electrical engineer, known for his pioneering work on long-distance radio transmission, the development of Marconi's law, and a radio telegraph system. He is credited as the inventor of the radio, and he shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy".

Marconi was born in Bologna, Italy, on April 25, 1874, the second son of an Italian father and an Irish mother.

Marconi was 20 years old when he embarked on a study of works by Heinrich Hertz (1857-1894). He began experimenting on the application of Hertzian waves to the transmission and reception of messages over a distance without wires. In the early summer of 1895, Marconi was first to transmit a signal that was received at a distance of about 2 km, despite a hill in its path.

Marconi registered his new company as the Wireless Telegraph and Signal Company in 1897. In December of 1898, the first wireless equipment manufacturing plant in the world was set up in an old silk factory in Hall Street in Chelmsford near London.

The age of long-distance wireless communication was born on December 12, 1901, as Marconi and his assistants were able to hear the three short bursts of the Morse code 'S' at the receiving station set up in a hospital in Signal Hill, St. John's Newfoundland.

Guglielmo married (1) Beatrice O'Brien on 1905.

Children of Guglielmo MARCONI and Beatrice O'Brien are:

  • Degna MARCONI, b. 1908, d. 1998.
  • Gioia MARCONI, b. 1916, d. 1996.
  • Giulio MARCONI, b. 1910, d. 1971.

His contribution to wireless telegraphy earned him the 1909 Nobel Prize in Physics which he shared with Karl Ferdinand Braun, head of the Physics Institute at the University of Strasbourg.

Marconi also pioneered radio broadcasting as a medium of mass communication. In what became Britain's first advertised public broadcast in 1920, a recital by singer Dame Nellie Melba was broadcast internationally by means of a Marconi 15 kW telephone transmitter at the Marconi works in Chelmsford.

Gioia Marconi Braga described Gugliemo as "a quiet, reserved person who recognized a spiritual force outside and above himself. He preferred to trust his own intuition rather than to accept too rigidly the limitations of his own plans which might have been imposed by the science of his day."

Marconi became a member of the Fascist party in 1923.

Guglielmo divorced his first wife in 1927 and married (2) Countess Maria Cristina Bezzi-Scali in 1927 in Italy. Mussolini was the best man at this wedding in 1927.

Children of Guglielmo MARCONI and Countess Maria Cristina Bezzi-Scali are:

  1. Maria Elettra Elena Anna MARCONI.

Marconi moved to Rome in 1935, never to leave Italy again. He died in the early hours of July 20th, 1937 at the age of 63, and his body was laid to rest in the mausoleum in the grounds of Villa Griffone. In a fitting tribute, wireless stations throughout the world fell silent for 2 minutes and the ether was as silent as it had been before Marconi.


  • Wikidata: Item Q36488, en:Wikipedia help.gif
  • Find a Grave, database and images ( : accessed 23 October 2021), memorial page for Guglielmo Marconi (25 Apr 1874–20 Jul 1937), Find A Grave: Memorial #9982, citing Villa Griffone, Sasso Marconi, Città Metropolitana di Bologna, Emilia-Romagna, Italy ; Maintained by Find a Grave.
  • Personal recollection: "When I worked at Ft. Monmouth in New Jersey for a couple of years, I discovered that an outpost of the fort about 10 miles away, named Camp Evans, had a very interesting history. It had originally been an estate in the du Pont family. Marconi had come to them and asked if he could use that property for an experiment because it bordered the Shark River just before it emptied into the Atlantic Ocean and the land had high salinity, which he required. The du Ponts not only allowed him to use the estate property, but also financed his work. There is a replica of the tower Marconi erected there, which was used for that first historic transmission.

    As an epilogue, a lot of electrical parts remained on the property that dated from the interval when Marconi worked there. The story gets very strange after that - at some point the property was the "world headquarters" of the Ku Klux Klan (unbelievable that would be in New Jersey, isn't it?) and later was vacant when, at the start of World War II, the Army started to use it as a mustering point for soldiers who had completed training and were awaiting orders. They discovered all the discarded electrical parts left by Marconi and occupied themselves with finding ways to use it. This was the start of Camp Evans becoming a communications center for the Army. There are also abandoned pigeon coops there (you don't want to be downwind of them even today) that housed homing pigeons, trained for use to send messages during World War II.

    Today, Fort Monmouth is the location of CECOM, the Communications and Electronic Command of the Army." -- commented by Gaile Connolly G2G6 Pilot
  • Personal recollection: "During WWII, from 1943 to 1946, my father was the Director of Engineering at the Signal Corps Labs at Fort Monmouth. I was 6-9 yeras old and enjoyed playing on the post. We lived in one of the officer's quarters at Fort Monmouth. My father didn't talk about his work much at the time, but according to this web site "During World War II, Camp Evans was the Army’s radar home and Fort Monmouth’s "secret laboratory," ... where engineers and scientists worked in top-secret anonymity to protect the country against the German and Japanese forces." My father was given the Legion of Merit for his work." -- commented by Henry Chadwick G2G6

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