ðˌoʊ ˌælɪɡzˈændɹəz ɛɡzˈækt dˈeɪt ʌv bˈɜːθ ɪz nˌɑːt nˈoʊn, ɪɾ ɪz θˈɔːt ðæt ʃiː wʌz bˈɔːɹn ɪnðə lˈeɪt wˈʌn θˈaʊzənd θɹˈiːhˈʌndɹɪd sˈɪksti z ɔːɹ ˈɜːli wˈʌn θˈaʊzənd θɹˈiːhˈʌndɹɪd sˈɛvənti z.
Though Alexandra's exact date of birth is not known, it is thought that she was born in the late 1360s or early 1370s.