Conversation so far:
What was Robert Stewart, Viscount Castlereagh's early life like?
Robert Stewart, Viscount Castlereagh had recurring health problems throughout his childhood.
What else resulted from Robert Stewart, Viscount Castlereagh's childhood illness?
Robert Stewart, Viscount Castlereagh was sent to The Royal School, Armagh, rather than to England for his secondary education indirectly due to childhood health problems.

Question: How was his time in school?
Self-contained rewrite: How was Robert Stewart, Viscount Castlereagh's time in school?