ðə fjˈuːtʃɚ kˈɪŋ ænd pɹˈɪns ʌv ɐstʃɚɹˈiəz, tʃˈɑːɹlz ɹˌoʊmən fˈoːɹ, hɐdbɪn mˈæɹid fɔːɹ fˈaɪv jˈɪɹz wɪð nˈoʊ ˈɔfspɹɪŋ, ɹˈiːzən fɔːɹ wˌɪtʃ wɛn hɪz fˈɜːst tʃˈaɪld wʌz bˈɔːɹn hɪz ɡɹˈændfɑːðɚ, tʃˈɑːɹlz ɹˌoʊmən θɹˈiː, wˈɔntᵻd tə lˈiːv ˈɛvɪdəns ʌv hɪz ɡɹˈæɾɪtˌuːd tə ɡˈɑːd — tə hˈuːm hiː dᵻklˈɛɹd hˌævɪŋ pɹˈeɪd tʊ wˌaɪl wˈeɪɾɪŋ fɚðə kəntˌɪnjuːˈeɪʃən ʌvðə dˈaɪnɐsti — ænd, spəsˈɪfɪkli, tə ðə vˈɜːdʒɪn mˈɛɹi ɪn hɪz ˈædvəkəsi ʌvðɪ ɪmˈækjʊlət kənsˈɛpʃən ænd ʌv hˈuːm hiː dᵻklˈɛɹd hɪmsˈɛlf ðə pɹəfˈaʊndli dɪvˈaʊt kˈɪŋ.
The future king and prince of Asturias, Charles IV, had been married for five years with no offspring, reason for which when his first child was born his grandfather, Charles III, wanted to leave evidence of his gratitude to God — to whom he declared having prayed to while waiting for the continuation of the dynasty — and, specifically, to the Virgin Mary in his advocacy of the Immaculate Conception and of whom he declared himself the profoundly devout king.