Bēssos (English spelling)

Japanese: Bēssos（英語表記）Bessos

…The vast amount of precious metal bullion that was confiscated was put into circulation as coins, which contributed to the economic boom of the Hellenistic period. In 330 BC, Alexander, having achieved the intended purpose of the war of retaliation, decided to demobilize the Corinthian allied forces at Ecbatana and reorganize his army, but Darius was assassinated by his aides, including Bessos, while fleeing. He used the pursuit of the traitor as a convenient excuse to continue his eastern expedition and began to expand his conquests with a new vision. With the death of Darius and the downfall of the Achaemenid Empire in both name and reality, maintaining the authority of the old empire and rebuilding the central and local administrations, along with ensuring public order, became unavoidable policy issues. …

From Darius [III]

…When Alexander the Great of Macedonia invaded the empire, the king himself led an army to fight back, but was defeated in both battles at Issus (333 BC) and Gaugamela (331 BC). In the summer of 330 BC, while fleeing through eastern Iran, he was stabbed to death by Persian nobles, including Bessos, who were accompanying him. [Susumu Sato]. …

*Some of the terminology that mentions "Bēssos" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…接収された莫大な量の貴金属地金類は，その大部分が鋳貨として流通過程にのせられて，ヘレニズム時代の経済好況を生む一因となった。　前330年アレクサンドロスは報復戦争の所期の目的が達成されたとして，エクバタナでコリントス同盟軍の動員解除，軍の再編成に踏みきるが，折からダレイオスが逃走の途中ベッソスBēssosら側近の手で弑逆（しぎやく）されると，彼はこの大逆追討を東征継続のためのかっこうの口実として，新たな展望のもとに征服拡大に着手する。ダレイオスの死によって名実ともにアケメネス朝帝国が滅亡すると，旧帝国に代わる統治の権威保持，中央地方行政の再建は，治安の確保とともに不可避の政策課題だった。…