definitely! ash, going by asa at the time, is the fire bride-consort of koschei (destroyer) somewhere around 1200-1300 before being offed by ivan the terrible (really hate that guy) and, at some kind of unspecific point after, ended up knowing babayagas which is why she's got any phoenix feathers to begin with. at this point, in this lifetime, he doesn't know about much of any of that beyond weird deja vu dreams and historical accounts, and is pretty much just an apothecary who happens to be able to set things on fire, lol. but he's been around a loooong while in one life or another for them to have crossed paths!