The first hints to Natasha Romanova's childhood come from Ivan Petrovich, who is introduced as her middle-aged chauffeur and confidant in the Black Widow's 1970s "Amazing Adventures". Petrovich tells Matt Murdock that he had been given custody of little Natasha by a woman who died immediately afterwards, during the Battle of Stalingrad in autumn 1942. He consequently felt committed to raise the orphan as a surrogate father and she eventually trained as a Soviet spy, being eager to help her homeland. In another flashback, set in the fictional island of Madripoor in 1941, Petrovich helps Captain America and the mutant Logan, who would later become the Canadian super-agent and costumed hero Wolverine, to rescue Natasha from Nazis.