hiː kɹiːˈeɪɾᵻd hɪz bˈɑːɹdɪk nˈeɪm baɪ tɹænspˈoʊzɪŋ ɔːltwˈɛn, ðə nˈeɪm ʌvðə vˈɪlɪdʒ əkɹˌɑːs ðə ɹˈɪvɚ fɹʌm hɪz bˈɜːθpleɪs.
He created his bardic name by transposing Alltwen, the name of the village across the river from his birthplace.