Complex sentence: At the time, the queen had been considering Stanley for honours and titles, including his appointment as viceroy of Ireland; but he was almost certainly in complete sympathy with the jesuits, which order his brother had joined and whose members sang his praises.
Split into simpler sentences: At the time, the queen had been considering Stanley for honours and titles and an appointment as viceroy of Ireland. But he was almost certainly in complete sympathy with the jesuits, which order his brother had joined and whose members sang his praises.