Complex sentence: Bartolomé de las Casas was given permission to try to convert the Q’eqchi "people to Christianity, however only a small portion were converted and the church lost the ability to govern the Q’eqchi".
Split into simpler sentences: Bartolomé de las Casas was given permission to try to convert the Q’eqchi people to Christianity. This resulted in only a small portion of Q’eqchi "being converted and the church lost the ability to govern the Q’eqchi".