This article summarises the relationships between various members of the family of Lowther baronets.
Sir Christopher Lowther Sir John Lowther, of Lowther (d. 1637) Sir John Lowther, 1st Baronet (1605–1675) John Lowther (of Hackthorpe) John Lowther, 1st Viscount Lonsdale Richard Lowther, 2nd Viscount Lonsdale Henry Lowther, 3rd Viscount Lonsdale Anthony Lowther (of Lowther) William Lowther (of Hackthorpe) Richard Lowther (died 1703) Robert Lowther (elder) James Lowther, 1st Earl of Lonsdale Robert Lowther (younger) Ralph Lowther John Lowther (of Ackworth Park) Sir Christopher Lowther, 1st Baronet Sir John Lowther, 2nd Baronet Sir Christopher Lowther, 3rd Baronet Sir James Lowther, 4th Baronet William Lowther (of Swillington, elder) William Lowther (of Swillington, younger) Sir William Lowther, 1st Baronet (1663-1729) Sir William Lowther, 2nd Baronet Christopher Lowther (d. 1718) Sir William Lowther, 1st Baronet (1707-1788) William Lowther, 1st Earl of Lonsdale William Lowther, 2nd Earl of Lonsdale Francis William Lowther (illegitimate) Claude Lowther Henry Cecil Lowther Henry Lowther, 3rd Earl of Lonsdale St George Lowther, 4th Earl of Lonsdale Hugh Lowther, 5th Earl of Lonsdale Lancelot Lowther, 6th Earl of Lonsdale Anthony Lowther, Viscount Lowther James Lowther, 7th Earl of Lonsdale Hugh Lowther, 8th Earl of Lonsdale William Lowther (diplomat) James Lowther, 1st Viscount Ullswater Christopher Lowther John Arthur Lowther (1910-1942) Nicholas Lowther, 2nd Viscount Ullswater Sir Gerard Lowther, 1st Baronet Cecil Lowther Sir John Lowther, 1st Baronet (1759-1844) Sir John Henry Lowther, 2nd Baronet Sir Charles Hugh Lowther, 3rd Baronet George William Lowther Sir Charles Lowther, 4th Baronet James Lowther (of Wilton Castle) Robert Lowther (d. 1655) Anthony Lowther (of Marske) Sir William Lowther, 1st Baronet (1670-1705) Sir Thomas Lowther, 2nd Baronet Sir William Lowther, 3rd Baronet