Most likely refers to
皮埃尔·
泰拉伊·
德·
拜亚尔 (Pierre Terrail de Bayard, c.1473–1524), the French chevalier called 'le chevalier sans peur et sans reproche' ('the knight without fear and beyond reproach'). May also transliterate the Mongolian/Turkic name Bayar (meaning 'joy') or appear in fictional fantasy names. Mainland press more often uses
巴亚尔 or
巴耶 for these names —
拜亚尔 is the subtitle/translator-style rendering.