This was Mercedes’ first double podium of the year and the first time a Silver Arrow finished in the top two in the first 12 races.
Hamilton's result ensured he maintained his streak of finishing on the podium at each Paul Ricard event since the venue returned in 2018.
After standing on the podium at Magny-Cours in 2007, the only French GP Hamilton has failed to finish in the top three was in 2008.
The result was also Mercedes' fifth consecutive podium and Hamilton's fourth successive top-three finish.
The last Ferrari driver to have started from pole at Paul Ricard was Mansell, who retired from the 1990 edition with engine issues. A similar fate befell Leclerc, who crashed out from the lead.
All three of Leclerc's retirements this year have come when the Monégasque was leading from pole position - in Spain, Azerbaijan and France. On each occasion, Verstappen was the victor and Russell finished third.
The ups and downs for Sainz
Fifth place for Carlos Sainz was his best result in a French Grand Prix. But it was the first time this season he has finished a race outside the top four.
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