Rhēsus

i, m.
I. the son of a Muse, a king in Thrace, who was robbed of his horses and killed by Diomede and Ulysses before Troy, Cic. N. D. 3, 18, 45; Verg. A. 1, 469; Ov. M. 13, 249 sq. al.
Lewis & Short
A Latin Dictionary, 1879
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