Summanus

[3] Varro lists Summanus among gods to whom Sabine king Titus Tatius dedicated altars (arae) in consequence of a votum.

[9] Georges Dumézil[10] has argued that Summanus would represent the uncanny, violent and awe-inspiring element of the gods of the first function, connected to heavenly sovereignty.

[16] Cicero recounts that the clay statue of the god which stood on the roof of the Temple of Jupiter Optimus Maximus was struck by a lightning bolt: its head was nowhere to be seen.

[18] Mount Summano (elevation 1291 m), located in the Alps near Vicenza (Veneto, Italy), is traditionally considered a site of the cults of Pluto, Jupiter Summanus, and the Manes.

The local flora is very peculiar, because it was customary in ancient times for pilgrims to bring offerings of flowers from their own native lands.