When the world gazes at the swirling cobalt skies of The Starry Night or the radiant yellows of Sunflowers, Vincent van Gogh is universally remembered as a lone, tragic genius. Yet, had history followed its expected course, his name would likely be forgotten in an attic in the Netherlands. The painter who sold almost nothing in his lifetime owes his immortal fame not to luck, but to one determined woman: his sister-in-law, Johanna van Gogh-Bonger (known fondly as Jo). A Sudden Tragedy and an Inherited Burden In January 1891, twenty-eight-year-old Jo Bonger faced unimaginable loss. Just six months after Vincent took his own life in Auvers-sur-Oise, her husband, art dealer…