ðˈɛɹfoːɹ, ɪɾ ɪz kənsˈɪdɚd æz ðə tɹˈænsɪtˌoːɹi sˈʌbɹiːdʒən bᵻtwˌiːn θɹˈiː nˈeɪbɚɹɪŋ ɹˈiːdʒənz ʌv kaɪˈeɪviə, mæzˈoʊviə ænd tʃˈɛlmnoʊ lˈænd, wɪð wˌɪtʃ ɪt hæd klˈoʊs hɪstˈɔːɹɪkəl tˈaɪz æt vˈɛɹiəs tˈaɪmz.
Therefore, it is considered as the transitory subregion between three neighbouring regions of Kuyavia, Mazovia and Chełmno Land, with which it had close historical ties at various times.