Those who take on the world with ideas that outlive them belong as much — perhaps more — to it as they do to their families. While their work and public lives are well-documented, the personal side often remains obscured; the hardships and sacrifices taking a backseat as glory, at times infamy, take centre stage.

In Jenny von Westphalen, however, Karl Marx didn't just find a companion who provided him emotional strength and succour as the Marxes battled penury, persecution and the death of four of their children, but also an unrelenting collaborator as he analysed the flaws of capitalism and provided an alternative that continues to stir up impassioned debates. On the political theorist and revolutionary's 201st birth anniversary on May 5, Michaela Talwar and Satchit Puranik are bringing together their German and Indian backgrounds in the new play Mrs & Marx, to present what they call an impossible love story.