Undefined Character (U+10D91)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𐶑` `𐶑`
UTF-8 Encoding:	`0xF0 0x90 0xB6 0x91`
UTF-16 Encoding:	`0xD803 0xDD91`
UTF-32 Encoding:	`0x00010D91`

References