Complex sentence: The Governing Body of the Church in Wales voted twice during Morgan's time as archbishop on the ordination of women to the episcopate, once in April 2008 (when the Governing Body voted in dissent) and once in 2013 (when it voted in assent).
Split into simpler sentences: The Governing Body of the Church in Wales voted twice during Morgan's time as Archbishop on the ordination of women to the episcopate. Once in April 2008 (where the Governing Body voted in dissent), and once in 2013 (where the Governing Body voted in assent).