Viscounts Ashbrook (1751)
- Henry Flower, 1st Viscount Ashbrook (d. 1752)
- William Flower, 2nd Viscount Ashbrook (1744–1780)
- William Flower, 3rd Viscount Ashbrook (1767–1802)
- Henry Jeffrey Flower, 4th Viscount Ashbrook (1776–1847)
- Henry Jeffrey Flower, 5th Viscount Ashbrook (1806–1871)
- Henry Jeffrey Flower, 6th Viscount Ashbrook (1829–1882)
- William Spencer Flower, 7th Viscount Ashbrook (1830–1906)
- Robert Thomas Flower, 8th Viscount Flower (1836–1919)
- Llowarch Robert Flower, 9th Viscount Ashbrook (1870–1936)
- Desmond Llowarch Edward Flower, 10th Viscount Ashbrook (1905–1995)
- Michael Llowarch Warburton Flower, 11th Viscount Ashbrook (b. 1935)
The heir apparent is the present holder's son the Hon. Rowland Francis Warburton Flower (b. 1975)
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