The character from Greek mythology who embodies loyalty and fidelity is Penelope, the wife of Odysseus. Throughout his prolonged absence during the Trojan War and subsequent adventures, Penelope remains faithful despite suitors vying for her hand. Her loyalty is marked by cleverness; she weaves a tapestry by day and unravels it at night to delay remarrying. Penelope’s character highlights the virtues of patience, intelligence, and unwavering devotion, becoming a symbol of fidelity in literature and mythology.