India, Feb. 25 -- A German court has convicted three individuals for attempting to blackmail the family of Formula 1 legend Michael Schumacher, but the family is pushing for a harsher sentence for one of the defendants.

A Wuppertal district court found a 53-year-old man, Yilmaz T, guilty of attempting to extort 15 million euros ($15.5 million) from Schumacher's family by threatening to release photos and videos of the former world champion.

He was sentenced to three years in prison. His 30-year-old son, Daniel L, received a six-month suspended sentence, while Markus F, a former security guard at the Schumacher residence, was found guilty of aiding and abetting the plot and was handed a two-year suspended sentence.

The Schumacher family...