Robert Trollope, or Trollap, was an architect, surveyor and a stone-mason active, particularly in Northumberland, England, in the mid- to late-17th century. His two most notable Northumbrian works are perhaps Capheaton Hall, for which he was contracted in 1667 to build for Sir John Swinburne and Nether Witton Hall which he built in 1672 for Nicholas Thornton, Swinburne's son-in-law. Both express Trollope's unique and inventive vernacular baroque style for which he was renowned. Trollope died in 1686. He was buried in Gateshead churchyard on 11 December.
Colvin, Howard, A Biographical Dictionary of British Architects 1600-1840, 3rd edition (New Haven and London: Yale University Press, 1995), pp. 989-990.