In the 80’s (at around 10-13yrs old) I read a YA fantasy trilogy about a warring general who was half human half (lizard/reptile/dragon?) who’s skin is covered in (tiny blue) scales. He was looked down on for this deformity but his difference was part of his driving force. The trilogy follows a young girl who was captured or sold into the war party/entourage and follows her journey as the general conquers lands etc. I can’t remember much more but she eventually becomes his mistress or concubine type of slave maybe?
Paperback trilogy, Young adult section, fantasy fiction. It seemed new at the time but it could have been written in the mid to late seventies or early eighties? It seemed to be set in a slightly game of thrones non-era era? All three books were of average novel length. I partially remember the covers being full colour, maybe a central picture in a darker arched border?