Suggested preparatory reading:
Claire Webb, ‘The “Gude Regent?” A Diplomatic Perspective upon the Earl of Moray, Mary, Queen of Scots and the Scottish Regency 1567-1570’ unpublished University of Edinburgh thesis, ch. 1 research-repository.st-andrews.ac.uk/bitstream/handle/10023/459/ClaireWebbPhDThesis.pdf?sequence=6; Jane Dawson, The Politics of Religion in the Age of Mary, Queen of Scots (2002), ch. 6