Which modern island is believed to be the ancient Greek island Thrinacia, where the Cattle of Helios pastured in Greek mythology?

In Greek mythology, the Cattle of Helios also called the Oxen of the Sun, were cattle pastured on the island of Thrinacia, believed to be the modern island of Sicily. Helios, also known as the sun god, is said to have had seven herds of oxen and seven flocks of sheep, each numbering 50 head.

In the 'Odyssey', one of the major ancient Greek epic poems by Homer, he describes these immortal cattle as handsome, wide-browed, fat and curved-horned. The cattle were guarded by Helios' daughters, 'Phaethusa' and 'Lampetie', and it was known by all that any harm to any single animal was sure to bring down the wrath of the god.

Sicily is the largest Mediterranean island, just off the toe of Italy's boot. It is an autonomous region of Italy, along with surrounding minor islands, officially referred to as 'Regione Siciliana'.