Final answer:
Richard Montagu's writings in 1625 provide evidence of Charles' religious policies causing instability in England. Montagu defended Charles' reforms, which alienated the Puritans and other Protestant groups, leading to religious tensions and lack of tolerance.
Step-by-step explanation:
Richard Montagu's writings in 1625 can be considered strong evidence of Charles' religious policies causing instability in England. Montagu was a prominent Anglican priest who defended Charles' religious reforms, which included introducing Catholic liturgy and theology into the Church of England.
Montagu's support for these policies further alienated the Puritans and other Protestant groups who saw them as a threat to their beliefs and practices. This led to increasing tensions between different religious factions in England and contributed to the overall instability in the country.
Additionally, Montagu's writings and the controversy surrounding them highlighted the lack of religious tolerance and freedom under Charles' rule. The persecution of nonconformists and the suppression of dissenting voices further fueled discontent and instability.