For a variety of reasons a quantity of religious houses that possessed, or claimed, the status of Imperial immediacy either did not attend the Imperial Diet, or were not listed in the surviving Matrikel.
fɚɹə vɚɹˈaɪəɾi ʌv ɹˈiːzənz ɐ kwˈɔntᵻɾi ʌv ɹᵻlˈɪdʒəs hˈaʊzᵻz ðæt pəzˈɛst, ɔːɹ klˈeɪmd, ðə stˈæɾəs ʌv ɪmpˈɪɹiəl ɪmˈiːdɪəsi ˈiːðɚ dɪdnˌɑːt ɐtˈɛnd ðɪ ɪmpˈɪɹiəl dˈaɪət, ɔːɹ wɜː nˌɑːt lˈɪstᵻd ɪnðə sɚvˈaɪvɪŋ mˈætɹɪkəl.