What form of armored heavy cavalry used in ancient warfare did Grivpanvar fought?
Grivpanvar The Grivpanvar (literally: neck-guard wearer), were an elite late Parthian and Sassanian division who fought as heavy knights or Cataphract cavalry. According to Roman sources, the Grivpanvar had the ability to impale two men on the long, heavy spears that they carried. Historical evidence suggests that the heavily armoured Parthian grivpanvar were at least partially influenced by the military of the Central Asian steppes, who in turn had inherited their armoured cavalry traditions from the Massagetae and the late Achaemenid Persians.
Perrhaebi The Perrhaebi (Ancient Greek: Περραιβοί ) were an ancient Greek people who lived in northern Thessaly. They took part in the Trojan War under Guneus and also fought in the Battle of Thermopylae. Their capital was Phalanna, and their most significant town, or "polis", was Oloosson. Through most of their history they were overshadowed and controlled by Thessaly, although they had two votes at the Delphic Amphictyony. Philip II of Macedon freed the Perrhaebi from Thessaly and took their kingdom for Macedonian control, under which it remained until Roman conquest in 196 BC. They were listed in Xerxes' vast army by Herodotus. A coin of the Perrhaebi depicted a man restraining a bull on one side and a horse on the other.The inscription was "Περραιβών".