I am something of a connoisseur of the country pile and I must say {he} had done himself remarkably well. At a guess I would say it was from the reign of Queen Anne and had been bunged up by some bewigged ancestor awash with loot from the War of the Spanish Succession or some such lucrative away fixture.
The narrator reflects on their refined taste for grand country houses, admiring the impressive work done by the current owner. They speculate that the estate likely dates back to the Queen Anne period, attributing its grandeur to the wealth amassed by a previous ancestor who benefitted from historical conflicts, such as the War of the Spanish Succession.
This observation highlights a connection to the past, where the legacy of wealth and aesthetics in English country homes tells a story of history and social status. The narrator's appreciation for architecture and heritage adds depth to their character, showcasing a blend of historical awareness and personal taste.