Espouse, vb. 1) to marry, to unite by the marriage-ceremony: “I have performed my task and was --d,” H6B I, 1, 9.
2) to take to wife: H5 II, 1, 81. H6B I, 1, 46. R3 IV, 5, 18. Tit. I, 242. Tit. I, 242
Espoused to == joined, associated with: “kings might be --d to more fame,” Lucr. 20. “and so --d to death,” H5 IV, 6, 26.