The Byzantine Empire re-established control over Pannonia in the 11th century, leading to the creation of the Theme of Sirmium to administer the region, but not lasting long.
ðə bˈɪzɐntˌiːn ˈɛmpaɪɚ ɹˌiːɪstˈæblɪʃt kəntɹˈoʊl ˌoʊvɚ pænˈoʊniə ɪnðɪ ɪlˈɛvənθ sˈɛntʃɚɹi, lˈiːdɪŋ tə ðə kɹiːˈeɪʃən ʌvðə θˈiːm ʌv sˈɜːmiəm tʊ ɐdmˈɪnɪstɚ ðə ɹˈiːdʒən, bˌʌt nˌɑːt lˈæstɪŋ lˈɔŋ.