> Source: https://www.openingbid.art/artist/william-brocas · updated 2026-11-01

# William Brocas (1794–1868)

## What is William Brocas’s work worth? {#value}

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.

**Top auction records: paintings, drawings & sculpture**

| # | Work | Medium | Price | House | Sold |
|---|---|---|---|---|---|
| 1 | Portrait of Mary Anne, Lady Rossmore (née Walsh) (d. 1807) | Oil on canvas | $24,820 | James Adam Salesrooms | Apr 2026 |
| 2 | Portrait of Mary Anne, Lady Rossmore (née Walsh) | Oil on canvas | $24,580 | James Adam Salesrooms | Apr 2026 |
| 3 | Thoroughbred horses, standing in a landscape, 1794 | Oil on canvas | $20,346 | James Adam Salesrooms | Oct 2013 |
| 4 | Portrait of the Hon. Henry Robert Westenra, 3rd Baron Rossmore, 1794 | Oil on canvas | $13,870 | James Adam Salesrooms | Apr 2026 |
| 5 | Portrait of the Hon. Henry Robert Westenra, 3rd Baron Rossmore, 1794 | Oil on canvas | $13,736 | James Adam Salesrooms | Apr 2026 |
| 6 | Portrait of Anne Douglas-Hamilton, 1843 | Oil on canvas | $11,567 | James Adam Salesrooms | Apr 2026 |
| 7 | View at Innishannon, Co. Cork, 1861 | Oil on canvas | $10,595 | James Adam Salesrooms | Dec 2020 |
| 8 | Portrait of the Hon. Major Richard Westenra, 1794 | Oil on | $7,229 | James Adam Salesrooms | Apr 2026 |
| 9 | Portrait of Lt. Col. Henry Westenra (1792-1860), 8th Hussars, 1839 | Oil on canvas | $7,008 | James Adam Salesrooms | Apr 2026 |
| 10 | Portrait of Lt. Col. Henry Westenra (1792-1860), 8th Hussars, 1839 | Oil on canvas | $6,877 | James Adam Salesrooms | Apr 2026 |


**Median price by medium (last 24 months, n ≥ 5)**

| Medium | Sales | Median |
|---|---|---|
| Paintings | 15 | $7,008 |

**Median price by size (last 24 months, n ≥ 5)**

| Size | Sales | Median |
|---|---|---|
| Medium (50-120 cm) | 16 | $7,119 |

Data as of 2 November 2026 · Source: OpeningBid, 21 results from 2 houses · [How we compute these figures](https://www.openingbid.art/methodology/price-data)


William Brocas is an Irish artist with 30 auction lots recorded since 2002, median price $6,877.

A work by William Brocas sold in 2026 for $11,567, according to OpeningBid's index of auction results.

## What is a William Brocas work worth?

Across 19 sold lots tracked by OpeningBid, the median price of a William Brocas work is $6,877.

The median William Brocas painting sells for $6,942 across 16 lots.

The median William Brocas work on paper sells for $633 across 3 lots.

Some prices are hammer-only and exclude the buyer's premium.

## Price breakdown by category

| Category | Lots tracked | Median price | Record price | Sell-through | Last sale |
|---|---|---|---|---|---|
| Paintings | 25 | $6,942† | $24,820 | 64% | 2026-04-28 |
| Works on Paper | 4 | $633 | $1,621 | 75% | 2016-03-23 |

† hammer price — buyer's premium not included.

## Price by size

### Paintings

| Size | Sold lots | Typical range (p25–p75) | Median | Record |
|---|---|---|---|---|
| medium (50–120 cm) | 16 | $5,112–$13,769† | $6,942† | $24,820 |

† hammer price — buyer's premium not included.

Size is the work's longest edge. Cells appear only with at least 5 sold lots.

## Notable results

| Medium | Year | Price |
|---|---|---|
| Paintings | 2026 | $24,820 |
| Paintings | 2026 | $24,580 |
| Works on Paper | 2011 | $1,621 |
| Works on Paper | 2015 | $633 |

The highest recorded result in each medium. The full sale history is in the OpeningBid app (free sign-up).

## Frequently asked questions

### What is a William Brocas worth?

Across 19 sold lots tracked by OpeningBid, the median price of a William Brocas work is $6,877. The median William Brocas painting sells for $6,942 across 16 lots. The median William Brocas work on paper sells for $633 across 3 lots. Some prices are hammer-only and exclude the buyer's premium.

### What is the average price of a William Brocas painting?

Based on 16 sold lots tracked by OpeningBid, the median auction price of a William Brocas painting is $6,942. Some prices are hammer-only and exclude the buyer's premium.

### What is William Brocas's most expensive painting?

The highest price recorded at auction for a William Brocas painting is $24,820.

### What is the average price of a medium William Brocas painting?

Based on 16 sold lots, the median auction price of a medium William Brocas painting (medium (50–120 cm)) is $6,942, according to OpeningBid's index of auction results. Some prices are hammer-only and exclude the buyer's premium.

### What is William Brocas's auction record?

William Brocas's auction record is $24,820, set in 2026.

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Data last updated 2026-11-01. OpeningBid tracks 15,222,099 auction lots from 571 auction houses, refreshed nightly.

Cite this page as: OpeningBid, “William Brocas auction prices”, https://www.openingbid.art/artist/william-brocas (updated 2026-11-01).

Historical auction data, not investment advice. Prices are premium-inclusive USD where the buyer's premium is recorded. Figures marked † are hammer prices (buyer's premium not included); ‡ marks a price whose basis is not yet verified. Non-USD results are converted at the sale month's rate.