Viscount Ullswater - Viscounts Ullswater (1921)

Viscounts Ullswater (1921)

• James William Lowther, 1st Viscount Ullswater (1855–1949)
  • Hon. Christopher William Lowther (1887–1935)
    • Hon. John Arthur Lowther (1910–1942)
• Nicholas James Christopher Lowther, 2nd Viscount Ullswater (b. 1942)

The heir apparent is the present holder's eldest son, Hon. Benjamin James Lowther (b. 1975).

His heir apparent is his son, Nikolas Lowther (b. 2009).