His grandfather, James Sinclair, was also a B.C. Liberal MP from 1940 to 1958 and a former minister of fisheries and oceans.
But Trudeau is not the only current MP to follow in the footsteps of a family member all the way to the House of Commons.
Maxime Bernier
Conservative Minister Maxime Bernier was first elected in 2006 in the Quebec riding of Beauce.
The riding was held for years by none other than...
Gilles Bernier
Gilles Bernier, Maxime's dad, represented Beauce for 13 years (1984-1997), first as a Progressive Conservative and then, briefly, as an Independent.
Peter MacKay
Peter MacKay has been an MP since 1997. He first represented the Nova Scotia riding of Pictou-Antigonish-Guysborough but, since 2004, has been the member for Central Nova.
Central Nova is a riding that was held for more than 21 years by...
Elmer MacKay
Elmer MacKay, Peter's dad, represented Central Nova from 1971-1983 before stepping down so that Prime Minister Brian Mulroney could (briefly) take his spot. MacKay won again in 1984 and served until his retirement in 1993.
Thomas Mulcair
NDP Leader Thomas Mulcair was first elected in a 2007 byelection in the Quebec riding of Outremont. The win marked just the second time that the NDP had won a seat in Quebec.
But, more than 100 years earlier, another member of Mulcair's family represented a different Quebec riding.
Honoré Mercier
Mercier, Mulcair's great-great-grandfather, was briefly a Liberal MP from 1872 to 1874 in the Quebec riding of Rouville.
Mercier later went on to become the ninth premier of Quebec.
Dominic LeBlanc
Liberal MP Dominic LeBlanc was first elected in the New Brunswick riding of Beauséjour—Petitcodiac in 2000.
It likely didn't hurt that his father was one of the most accomplished politicians in the country.
Roméo LeBlanc
Roméo LeBlanc, Dominic's dad, was a Liberal MP from 1972-1984 in the New Brunswick riding of Westmorland—Kent, which was replaced by the riding his son now represents.
LeBlanc was also appointed to the Senate in 1984, where he later became Speaker.
And, from 1995-1999, he served as the 25th Governor General of Canada.
Geoff Regan
Liberal MP Geoff Regan was first elected in the Nova Scotia riding of Halifax West in 1993. Though he lost his bid for re-election in 1997, he returned to the House in 2000 and has been there ever since. He also served as minister of fisheries and oceans.
Like Trudeau, both Regan's father and grandfather also served as Grit MPs.
Gerald Regan
Gerald Regan, Geoff's dad, was also an MP for Halifax on two separate occasions. He was first elected in 1963, but resigned in 1965 to become leader of the Nova Scotia Liberals.
Regan would go on to serve as Nova Scotia premier from 1970-1978. He returned to Ottawa as an MP in 1980 but was defeated four years later.
John Hornby Harrison
Harrison, the grandfather of Geoff Regan and father-in-law of Gerald, served as a Liberal MP for the Saskatchewan riding of Meadow Lake from 1949-1958.
Paul Dewar
NDP MP Paul Dewar was first elected in the riding of Ottawa Centre in 2006.
He ran for the leadership of the NDP in 2012 and currently serves as his party's foreign affairs critic — a role that would likely make his mother proud.
Marion Dewar
Marion Dewar, Paul's mom, was elected as an NDP MP for the riding of Hamilton Mountain in a 1987 byelection after serving as president of the NDP for two years. She was defeated in the 1988 election.
Marion Dewar served as mayor of Ottawa from 1978-1985. In 1993, she ran in Ottawa Centre — the riding her son now represents — but lost.
Mark Strahl
Conservative MP Mark Strahl was elected in 2011 in the B.C. riding of Chilliwack--Fraser Canyon, a seat held for years by none other than...
Chuck Strahl
Chuck Strahl, Mark's dad, was first elected under the Reform Party banner in the B.C. riding of Fraser Valley East in 1993.
The riding later became Chilliwack--Fraser Canyon, which he represented until his retirement in 2011. He served as minister of agriculture, minister of Indian affairs and northern development and minister of transport.
