The Semnones were a Germanic and specifically a Suebi people, who between the Elbe and the Oder in the 1st and 2nd centuries AD.
They were described in the late 1st century by Tacitus in his Germania :
"The Semnones give themselves out to be the most ancient and renowned branch of the Suebi. Their antiquity is strongly attested by their religion. At a stated period, all the tribes of the same group assemble by their representatives in a grove consecrated by the auguries of their forefathers, and by immemorial associations of terror. Here, having publicly slaughtered a human victim, they celebrate the horrible beginning of their barbarous rite. Reverence also in other ways is paid to the grove. No one enters it except bound with a chain, as an inferior acknowledging the might of the local divinity. If he chance to fall, it is not lawful for him to be lifted up, or to rise to his feet; he must crawl out along the ground. All this superstition implies the belief that from this spot the nation took its origin, that here dwells the supreme and all-ruling deity, to whom all else is subject and obedient. The fortunate lot of the Semnones strengthens this belief; a hundred cantons are in their occupation, and the vastness of their community makes them regard themselves as the head of the Suebic tribe." [1]
The Semnones's own name is apparently etymologically similar or even the same as the one recorded by Roman authors as "Suebi" and during his own time Julius Caesar, had mentioned Suebi but not Semnones, being a powerful tribal group with 100 cantons.
The king of the Semnones Masyas and his priestess Ganna are mentioned by Cassius Dio. They worshipped a supreme god (Latin : regnator omnium deus) at a sacred grove. A grove of fetters is also mentioned in the eddic poem Helgakviða Hundingsbana II . Ptolemy's map of Germania mentions a forest called Semanus Silva, but a relation to the Semnones is unknown.
In the 3rd century, the Semnones shifted southwards and eventually ended up as part of the Alemanni people.
The Angles were one of the main Germanic peoples who settled in Great Britain in the post-Roman period. They founded several kingdoms of the Heptarchy in Anglo-Saxon England. Their name, which probably derives from the Angeln peninsula, is the root of the name England, as well as ultimately the word English for its people and language. According to Tacitus, writing around 100 AD, a people known as Angles (Anglii) lived beyond the Lombards and Semnones, who lived near the River Elbe.
The Marcomanni were a Germanic people who lived close to the border of the Roman empire, north of the River Danube. They were one of the most important members of the powerful cluster of related Suebian peoples in this region, which also included the Hermunduri, Varisti, and Quadi along the Danube, and the Semnones and Langobardi to their north, and they were particularly important to the Romans. They appear in Roman records from approximately 60 BC until about 400 AD.
The Suebi were a large group of Germanic peoples originally from the Elbe river region in what is now Germany and the Czech Republic. In the early Roman era they included many peoples with their own names such as the Marcomanni, Quadi, Hermunduri, Semnones, and Lombards. New groupings formed later, such as the Alamanni and Bavarians, and two kingdoms in the Migration Period were simply referred to as Suebian.
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The Irminones, also referred to as Herminones or Hermiones, were a large group of early Germanic tribes settling in the Elbe watershed and by the first century AD expanding into Bavaria, Swabia, and Bohemia. Notably this included the large sub-group of the Suevi, that itself contained many different tribal groups, but the Irminones also included for example the Chatti.
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The Hermunduri, Hermanduri, Hermunduli, Hermonduri, or Hermonduli were an ancient Germanic tribe, who occupied an inland area near the source of the Elbe river, around what is now Bohemia from the first to the third century, though they have also been speculatively associate with Thuringia further north. According to an old proposal based on the similarity of the names, the Thuringii may have been the descendants of the Hermunduri. At times, they apparently moved to the Danube frontier with Rome. Claudius Ptolemy mentions neither tribe in his geography but instead the Teuriochaemae, who may also be connected to both.
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In Tacitus' work Germania from the year 98, regnator omnium deus was a deity worshipped by the Semnones tribe in a sacred grove. Comparisons have been made between this reference and the poem Helgakviða Hundingsbana II, recorded in the 13th century from earlier traditional sources.
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Ganna was a Germanic seeress, of the Semnoni tribe, who succeeded the seeress Veleda as the leader of a Germanic alliance in rebellion against the Roman Empire. She went together with her king Masyus as envoys to Rome to discuss with Roman emperor Domitian himself, and was received with honours, after which she returned home. She is only mentioned by name in the works of Cassius Dio, but she also appears to have provided posterity with select information about the religious practices and the mythology of the early Germanic tribes, through the contemporary Roman historian Tacitus who wrote them down in Germania. Her name may be a reference to her priestly insignia, the wand, or to her spiritual abilities, and she probably taught her craft to Waluburg who would serve as a seeress in Roman Egypt at the First Cataract of the Nile.
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