{"slug":"william-brocas","artist_id":"6a372b78-08c1-498d-bd9a-46fc6dd93a78","canonical_slug":"william-brocas","name":"William Brocas","built_at":"2026-11-01","categories":[{"bucket":"Paintings","lots_n":25,"sold_n":16,"median_price_usd_minor":694230,"record_price_usd_minor":2482001,"record_basis":"premium","priced_lots_hammer_only":1,"priced_lots_unverified":0,"sell_through_pct":64,"last_sale_date":"2026-04-28","first_sale_year":2002},{"bucket":"Other","lots_n":2,"sold_n":2,"median_price_usd_minor":393110,"record_price_usd_minor":722938,"record_basis":"premium","priced_lots_hammer_only":0,"priced_lots_unverified":0,"sell_through_pct":null,"last_sale_date":"2026-04-28","first_sale_year":2015},{"bucket":"Works on Paper","lots_n":4,"sold_n":3,"median_price_usd_minor":63281,"record_price_usd_minor":162090,"record_basis":"premium","priced_lots_hammer_only":0,"priced_lots_unverified":0,"sell_through_pct":75,"last_sale_date":"2016-03-23","first_sale_year":2005}],"sizes":[{"bucket":"Paintings","size_bucket":"medium","lots_n":23,"sold_n":16,"median_price_usd_minor":694230,"p25_price_usd_minor":511151,"p75_price_usd_minor":1376938,"record_price_usd_minor":2482001,"record_basis":"premium","priced_lots_hammer_only":1,"priced_lots_unverified":0,"last_sale_date":"2026-04-28"}],"notable":[{"bucket":"Paintings","year":"2026","total_price_usd":2482001,"priced_basis":"premium"},{"bucket":"Paintings","year":"2026","total_price_usd":2457989,"priced_basis":"premium"},{"bucket":"Works on Paper","year":"2011","total_price_usd":162090,"priced_basis":"premium"},{"bucket":"Works on Paper","year":"2015","total_price_usd":63281,"priced_basis":"premium"}],"last_sold":{"year":"2026","total_price_usd":1156700,"priced_basis":"premium"},"upcoming_count":0,"content_modified":"2026-11-01","value_block_hash":"0b3241a035d04ae2be9af9272c31e06057aad0ba","value":{"slug":"william-brocas","name":"William Brocas","as_of":"2026-11-02","newest_result_date":"2026-04-28","results_total":21,"houses_total":2,"first_year":2011,"median_24m":{"usd_minor":722938,"p25_usd_minor":633005,"p75_usd_minor":1380292,"n":11,"basis":"premium"},"record":{"title":"Portrait of Mary Anne, Lady Rossmore (née Walsh) (d. 1807)","work_year":null,"usd_minor":2482001,"basis":"premium","sale_year":2026,"sale_month":"2026-04","house_name":"James Adam Salesrooms","lot_id":"3182641e-1bb5-4a61-a111-58875ece63de"},"by_medium":[{"medium":"Paintings","n":15,"median_usd_minor":700800}],"by_size":[{"band":"Medium (50-120 cm)","n":16,"median_usd_minor":711869}],"methodology_url":"https://www.openingbid.art/methodology/price-data","top10":{"originals":[{"rank":1,"title":"Portrait of Mary Anne, Lady Rossmore (née Walsh) (d. 1807)","work_year":null,"medium":"Oil on canvas","usd_minor":2482001,"basis":"premium","house_name":"James Adam Salesrooms","sale_month":"2026-04","lot_id":"3182641e-1bb5-4a61-a111-58875ece63de"},{"rank":2,"title":"Portrait of Mary Anne, Lady Rossmore (née Walsh)","work_year":null,"medium":"Oil on canvas","usd_minor":2457989,"basis":"premium","house_name":"James Adam Salesrooms","sale_month":"2026-04","lot_id":"51ec18a9-eb25-4d11-9dc6-97a07c9e2003"},{"rank":3,"title":"Thoroughbred horses, standing in a landscape","work_year":"1794","medium":"Oil on canvas","usd_minor":2034599,"basis":"premium","house_name":"James Adam Salesrooms","sale_month":"2013-10","lot_id":"f0794306-eb23-483b-be9e-aad8804bb97b"},{"rank":4,"title":"Portrait of the Hon. Henry Robert Westenra, 3rd Baron Rossmore","work_year":"1794","medium":"Oil on canvas","usd_minor":1387001,"basis":"premium","house_name":"James Adam Salesrooms","sale_month":"2026-04","lot_id":"ab34d078-2302-4fb7-8430-caa958d643ff"},{"rank":5,"title":"Portrait of the Hon. Henry Robert Westenra, 3rd Baron Rossmore","work_year":"1794","medium":"Oil on canvas","usd_minor":1373583,"basis":"premium","house_name":"James Adam Salesrooms","sale_month":"2026-04","lot_id":"8d7a47d4-8d56-4237-8eb1-3b8f3112b42b"},{"rank":6,"title":"Portrait of Anne Douglas-Hamilton","work_year":"1843","medium":"Oil on canvas","usd_minor":1156700,"basis":"premium","house_name":"James Adam Salesrooms","sale_month":"2026-04","lot_id":"fedd25b2-27f6-4fef-b624-cf7cddbbf5f4"},{"rank":7,"title":"View at Innishannon, Co. Cork","work_year":"1861","medium":"Oil on canvas","usd_minor":1059538,"basis":"premium","house_name":"James Adam Salesrooms","sale_month":"2020-12","lot_id":"5fb76a6a-c6cb-458f-b7ed-d172c3c24ec9"},{"rank":8,"title":"Portrait of the Hon. Major Richard Westenra","work_year":"1794","medium":"Oil on","usd_minor":722938,"basis":"premium","house_name":"James Adam Salesrooms","sale_month":"2026-04","lot_id":"a67d04bb-0af4-4ee8-84a5-8f7a9c1399a3"},{"rank":9,"title":"Portrait of Lt. Col. Henry Westenra (1792-1860), 8th Hussars","work_year":"1839","medium":"Oil on canvas","usd_minor":700800,"basis":"premium","house_name":"James Adam Salesrooms","sale_month":"2026-04","lot_id":"139fb41e-3524-426f-98b6-f35b7d505e67"},{"rank":10,"title":"Portrait of Lt. Col. Henry Westenra (1792-1860), 8th Hussars","work_year":"1839","medium":"Oil on canvas","usd_minor":687660,"basis":"premium","house_name":"James Adam Salesrooms","sale_month":"2026-04","lot_id":"99de8322-86f7-41cd-8bc6-d6ddcb52f961"}],"editions":[]},"paragraph":"As of 2 November 2026, OpeningBid has recorded 21 auction results for William Brocas at 2 houses since 2011. Over the last 24 months the median price was $7,229 including buyer’s premium (middle half $6,330–$13,803, n=11). The auction record is $24,820 for Portrait of Mary Anne, Lady Rossmore (née Walsh) (d. 1807) (2026, James Adam Salesrooms). Source: OpeningBid, an independent auction-results database.","title":"William Brocas value: auction records & prices (updated Nov 2026)"}}