Complex sentence: There she met the Beat poets Lew Welch and Gary Snyder and had a brief affair with Jack Kerouac, who immortalized Kandel as "Romana Schwarz", "a big Rumanian monster beauty" in his novel "Big Sur" (1962).
Split into simpler sentences: There she met the Beat poets Lew Welch and Gary Snyder and had a brief affair with Jack Kerouac. Kerouac immortalized Kandel as "Romana Swartz", "a big Rumanian monster beauty," in his novel "Big Sur" (1962).