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Open Image ModalPrime Minister Trudeau and his then-wife Margaret leave the city's Notre Dame Basilica Sunday afternoon after the christening of their 22-day old infant Justin Pierre James, Jan. 16, 1972. Tasseled shawls kept the baby hidden from photographers and the 10-degree-below-zero weather. (credit:CP/RCM)
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Open Image ModalEleven-month-old Justin Trudeau, urged on by his mother Margaret Trudeau, crawls up the steps of an aircraft in Ottawa on Dec. 5, 1972 to meet his father, then-prime minister, Pierre Trudeau on his return from Britain. (credit:Russell Mant/CP)
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Open Image ModalPierre Trudeau with sons Alexandre (Sacha) (L) and Justin (R) in 1978. (credit:Rod MacIvor/CP)
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Open Image ModalMarch 1979 photo of the Trudeau children: Michel (front), Alexandre (Sacha) and Justin (rear). (credit:CP)
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Open Image ModalPrime Minister Pierre Trudeau (centre) with his three sons (left to right) Alexandre (Sacha), Michel and Justin May 11, 1979. (credit:Peter Bregg/CP)
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Open Image ModalAlexandre (Sacha) Trudeau delivers a right hook to his older brother Justin during a play fight in 1980 at Ottawa airport as the boys await a flight with the return of their father, then-prime minister, Pierre Trudeau. Nobody was injured. Justin was born in 1971 and Sacha in 1973 -- both on Christmas day. (credit:Peter Bregg/CP)
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Open Image ModalIt was a big day for Dad, but a long day for the three Trudeau children. Left to right, Justin, Michel and Alexandre (Sacha) Trudeau attended the swearing-in ceremony of their father Pierre Elliott Trudeau as Prime Minister March 3, 1980 at Government House. (credit:Ron Poling/CP)
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Open Image ModalIn this June 25, 1980 photo, British Prime Minister Margaret Thatcher, Canadian Prime Minister Pierre Trudeau and his son Justin, 8, speak outside No. 10 Downing Street, in London. On Monday, Oct. 19, 2015, Canadian voters reclaimed their country's liberal identity sending Justin Trudeau to the prime minister's office and ending 10 years of conservative leadership under Stephen Harper. At 43, he becomes the second youngest prime minister in Canadian history. (credit:Lawrence Harris/CP)
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Open Image ModalPrime Minister Pierre Trudeau is welcomed home from his European trip June 27, 1981, by his three sons nine-year-old Justin (left), five-year-old Michel (centre), and seven-year-old Alexandre (Sacha) getting a kiss from Dad. (credit:Andy Clark/CP)
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Open Image ModalPrime Minister Pierre Trudeau attends the Remembrance Day ceremonies with his three sons, from left, Justin, Michel and Sacha on November 11, 1981 in Ottawa. (credit:Fred Chartrand/CP)
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Open Image ModalThen-prime minister Pierre Trudeau and 10-year-old son Justin walk toward a plane at CFB Ottawa on Nov. 7, 1982. (credit:Chris Schwarz/CP)
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Open Image ModalPrime Minister Pierre Trudeau took his sons to watch the official opening Canada Day ceremonies on Parliament Hill July 1, 1983 in Ottawa. (credit:Fred Chartrand/CP)
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Open Image ModalPrime Minister Pierre Trudeau and his three sons pose for a snapshot in front of the Parthenon on the Acropolis in Athens Aug. 30, 1983. From left are Michel, Alexandre (Sacha) and Justin in rear. (credit:Peter Bregg/CP)
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Open Image ModalThe three sons of Canadian Prime Minister Pierre Trudeau stand in line wearing Greek sailors’ caps as their father bids thanks to Greek officials in Athens, Greece on Sept. 2, 1983. (credit:Peter Bregg/CP)
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Open Image ModalThen-prime minister Pierre Trudeau, left, watches as his 11-year-old son Justin swings on a chain during a tour of an old fort in the Omani town of Nizwa on Dec. 2, 1983. Trudeau and Justin spent the day visiting the towns of Jebel and Nizwa in Oman. (credit:Andy Clark/CP Photo)
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Open Image ModalThen-prime minister Pierre Trudeau's 11-year-old son Justin jumps off an old cannon while visiting a fort along with his father in the Omani town of Nizwa and Jebel. (credit:Andy Clark/CP)
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Open Image ModalPrime Minister Pierre Trudeau waves with his sons Justin (left) Alexandre (Sacha) and Michel on stage at the Ottawa Civil Centre in 1984. (credit:CP)
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Open Image ModalPrime Minister Pierre Trudeau, with son Justin, left, applauds during a Liberal convention in Edmonton on Thursday, June 14, 1984. (credit:The Edmonton Journal-Chris Schwarz/CP)
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Open Image ModalFormer Prime Minister Pierre Trudeau shows how tall his eldest son Justin has grown in relation to himself during the seventh inning stretch at the Montreal Expos game in Montreal on April 20, 1987. (credit:Paul Chiasson/CP)