Question: What age was Warhol when his father passed away?
About the article "Andy Warhol", section "Early life (1928–1949)".

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In 1962 aged 22, he was introduced to the avant-garde art dealer Richard Bellamy (1927–1998), owner of the Green Gallery on 57th Street.
Amused by the coincidence of their names, Bellamy hired Green on the spot to man the galleries front desk.
Art writer John Gruen later described Green Gallery as an ""An important stepping-stone for every major American Pop artist.""
After Andy Warhol's friend Ted Carey saw the works of James Rosenquist there - when Warhol was without a gallery, and still working as an illustrator - he suggested that Warhol try to engage the owner.
In 1963 Warhol befriended Green in the gallery (assuming that Green was the son of the owner named "Green"), looking for an outlet for his artworks.
Warhol and Green became friends, and Green displayed a few of Warhol's early works at the gallery.
Green also acted as an assistant to one of Warhol's film projects, where they spent the sumer on Long Island and in The Hamptons, persuading wealthy socialites to let them film naked models in their bathrooms.
Green later appeared in Warhol's films "Batman Dracula" (1963) and "Soap Opera" (1964).
After six months at the gallery, through his father, Green secured the loan of over 50 works of art, which he intended to exhibit at the Davison Art Center at Wesleyan University.
The exhibition included Warhol pieces other leading contemporary artists including Tom Wesselman’s Great American Nude #39, and Yayoi Kusama’s Ten Guest Table.
In 1965, Green left the gallery and at the age of 25 became director of the Institute of Contemporary Art, Philadelphia.
Creating his first museum exhibition, he asked Warhol for what would make up the bulk of the exhibition works, which was also the artist's first retrospective.
Green chose Warhol’s S&H Green Stamps as the 40x40cm invitations he sent out for the preview – and for the design of the silk tie that he wore under his white Gucci evening suit.
However, as Warhol was not signing anything that year, Green signed all of the invitations "Andy Warhol, 1965".
In an exhibition space that nominally held 300 people, Green invited 6,000, resulting in the mass-mobbing of Warhol and Edie Sedgwick.
After the exhibition ended, Warhol had left his original dealer Eleanor Ward, and signed with Leo Castelli.
After three years, in 1967 having been refused permission to organise a campuswide sculpture exhibition at the University of Pennsylvania, Green ""abandoned the philistines"" and created an exhibition in the cities museum that included works by Barnett Newman, Tony Smith and Philip Johnson.
The resultant success allowed him to return to New York City's art scene as an acknowledged master of contemporary art installation.
Appointed a cultural adviser by the city’s mayor John Lindsay, six months later in 1967 Green realised Claes Oldenburg’s first outdoor public monument beside the Metropolitan Museum of Art.
"Placid Civic Monument" took the form of a Conceptual performance/action, with a crew of gravediggers digging a 6-by-3-foot rectangular hole in the ground.
To then protest against the proposed redevelopment of Easter Island as a United States Air Force refuelling station, Green shut down the 59th Street Bridge and both lanes of Park Avenue to allow installation of a giant Moai head sculpture in the forecourt of Seagram’s Plaza.
The USAF redevelopment plans were stopped by Congress shortly afterwards. 
Jagger was born in Paris, France.
She is the only child of Bianca (née Pérez-Moreno de Macías), a Nicaraguan model, actress and philanthropist, and Mick Jagger, an English musician and actor.
In her early years, Jagger and her family lived on London's fashionable Cheyne Walk in Chelsea.
Jagger's parents divorced in 1978; subsequently, she spent most of her time living in Manhattan with her jet-set mother and was often dropped off at The Factory to be babysat by her mother's friend, pop artist Andy Warhol.
In Manhattan, Jagger attended the Spence School.
At the age of 14, she enrolled in the all-girls boarding school in St Mary’s, Calne, England.
In January 1984, when Steve Jobs was visiting Manhattan, he was advised by Andy Warhol to give away one of his brand-new Macintosh computers to Jade's father.
Mick was "baffled" by the visit and the gift, but teenage Jade showed an immediate interest in drawing with the device's MacPaint, and Jobs gave it to her. 
Armen Hovhannisyan was born on June 30, 1994.
He had three sisters and was the only son in the family.
He graduated from #141 school after Grigor Baghyan in Yerevan.
Before being recruited, he studied in the State College of Culture and intended to continue his education as an operator.
Armen was engaged in sculpture and worked in a furniture workshop.
When his uncle passed away at the age of 18, his father named Armen after his brother. 
Snehal Bhatkar was born on 17 July 1919 in Mumbai in a Marathi-speaking family.
His father died when he was 18 months old.
His mother was a teacher and was a good singer as well.
It was from her that he picked up the basics of music.
After completing matriculation he learned music at a music school in Dadar.
He passed away at his Mumbai residence on 29th May, 2007 at the age of 87 years. 
Boyd was born and raised in Slidell, Louisiana, a small town not far from New Orleans.
His mother is an elementary school teacher, who left the family when Boyd was eleven.
His father is the owner of a construction company and left Blake to his own devices from his teenage years onward.
At the age of sixteen Boyd started to paint, with the ambition of showing professionally, and began his apprenticeship with an established local artist.
Boyd had to drop out of Memphis College of Art in 1989 for financial reasons and continued his apprenticeship until 2002.
At twenty-one Boyd met his first significant mentor, New York artist Andres Serrano, who, knowing Boyd's appreciation of Andy Warhol, introduced him to Taylor Mead.
This friendship expanded to include other members of the Warhol Factory, including Billy Name, Ultra Violet, Allen Midgette, Udo Kier, Joe Dallesandro and Robert Heide.