This sculpture is part of the Neptune Fountain at the Schonbrunn Palace in Vienna.
Wikipedia's article on art at the Schonbrunn Palace (
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"The Neptune Fountain at the foot of the Gloriette hill was designed to be the crowning monument of the Great Parterre. Commissioned by Empress Maria Theresa, work on the fountain began in 1776 and was completed within four years, just prior to the death of the empress. The overall design was done by Johann Ferdinand Hetzendorf von Hohenberg; the marble sculptural group was executed by Wilhelm Beyer.
The retaining wall of the Neptune Fountain merges into the slope of the Gloriette hill and includes a balustrade adorned with ornate vases. From a projecting semi-oval plinth, a rocky formation emerges with the sea-god Neptune and his entourage. The plinth is segmented by panels decorated with masks and separated and embellished with garlands. Neptune stands atop the grotto at the center of the figure group in a shell-shaped chariot holding a trident. A nymph is seated to his left. The sea-goddess Thetis kneels to his right, asking the sea god to favor her son Achilles on his voyage to Troy.
Appearing at the base of the grotto are four tritons—creatures who are half-man and half-fish—who are part of the sea-god's entourage. Each holds a conch shell trumpet with which they can inspire fear. They are restraining the sea-horses who draw Neptune's chariot across the seas.[40] This image of Neptune commanding the watery dominion was a common symbol in sixteenth, seventeenth, and eighteenth-century art, to represent monarchs controlling the fate of their people. In the nineteenth century, a bank of evergreen trees was planted behind the white figural group to provide a dark contrast."
and the Wikipedia article for Triton (
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"Triton... is a mythological Greek god, the messenger of the sea. He is the son of Poseidon and Amphitrite, god and goddess of the sea respectively, and is herald for his father. He is usually represented as a merman, having the upper body of a human and the tail of a fish, "sea-hued", according to Ovid "his shoulders barnacled with sea-shells".
Like his father, Poseidon, he carried a trident. However, Triton's special attribute was a twisted conch shell, on which he blew like a trumpet to calm or raise the waves. Its sound was such a cacophony, that when loudly blown, it put the giants to flight, who imagined it to be the roar of a dark wild beast.
According to Hesiod's Theogony, Triton dwelt with his parents in a golden palace in the depths of the sea; Homer places his seat in the waters off Aegae. The story of the Argonauts places his home on the coast of Libya. When the Argo was driven ashore in the Gulf of Syrtes Minor, the crew carried the vessel to the "Tritonian Lake", Lake Tritonis, whence Triton, the local deity euhemeristically rationalized by Diodorus Siculus as "then ruler over Libya", welcomed them with a guest-gift of a clod of earth and guided them through the lake's marshy outlet back to the Mediterranean. When the Argonauts were lost in the desert, he guided them to find the passage from the river back to the sea.
Triton was the father of Pallas and foster parent to the goddess Athena. Pallas was killed by Athena during a fight between the two goddesses. Triton is also sometimes cited as the father of Scylla by Lamia. Triton can sometimes be multiplied into a host of Tritones, daimones of the sea.
In the Virgil's Aeneid, book 6, it is told that Triton killed Misenus, son of Aeolus, by drowning him after he challenged the gods to play as well as he did."