09/19/2011 01:26 EDT | Updated 11/19/2011 05:12 EST

Dalton McGuinty And Tim Hudak Related, Says Ancestry.ca

TORONTO - It looks like Tim Hudak and Dalton McGuinty have more in common than a desire to be Ontario's premier.

A website that traces family history says the Liberal premier and his Progressive Conservative rival are related — but you have to go back a few hundred years.

Ancestry.ca says the two leaders are 10th cousins through their mothers.

Their shared ancestor is identified as Louis Jobidon, their ninth great-grandfather.

The website says Jobidon was originally from France but he married Marie Deligny in 1655 in Notre-Dame-de-Quebec Catholic Church in Quebec City.

When told about the family link, both Hudak and McGuinty cracked jokes, perhaps displaying a common family gene for making jest.

"So you're telling me the last time we were on the same page was in the 1600s? Maybe that explains a few things," the premier said Monday.

Said Hudak of McGuinty: "He must be that high-taxing black sheep we've been looking for."

"Nonetheless, we'll still invite him to Christmas dinner as long as he doesn't lecture us about putting the turkey in at 2 a.m. to avoid his smart meters," Hudak said, referring to the Liberals' time-of-use hydro pricing program.

Roger Dunbar, managing director of Ancestry.ca, said uncovering family links is useful because knowing the past helps us understand the present and prepare for the future.

"You can't help but think, 'What would Grandpa Louis think of this rivalry?'" he added.

Ancestry.ca has also discovered that Madonna, Celine Dion and Camilla Parker Bowles are related through a shared Quebec ancestor, Zacharie Cloutier.

The website says it hosts 128 million Canadian records and belongs to the global network of Ancestry websites which has seven billion records.