Complex sentence: In parallel, Jørgen Arenfeldt continued his witch trial on Rugård manor, were he had Gye Nielsdatter confess to witches companies, devil's mark, devil's pact, point out accomplices and then sentenced to be burnt in March 1686.
Split into simpler sentences: In parallel, Jørgen Arenfeldt continued his witch trial on Rugård manor, were he had Gye Nielsdatter confess to witches companies, devil's mark, and devil's pact. Nielsdatter was made to point out accomplices and then sentenced to be burnt, which was caried out in March 1686.