Viscount Cullen is in Viscount Ireland.
On 11th August 1642 Charles Cockayne 1st Viscount Cullen [aged 40] was created 1st Viscount Cullen. Mary O'Brien Viscountess Cullen [aged 33] by marriage Viscountess Cullen.
On 19th June 1661 Charles Cockayne 1st Viscount Cullen [aged 58] died. He was buried at St Peter's Church, Rushton. His son Brien [aged 29] succeeded 2nd Viscount Cullen.
In June 1687 Brien Cockayne 2nd Viscount Cullen [aged 55] died. He was buried at St Peter's Church, Rushton. His son Charles [aged 28] succeeded 3rd Viscount Cullen.
On 30th December 1688 Charles Cockayne 3rd Viscount Cullen [aged 30] died. His son Charles [aged 1] succeeded 4th Viscount Cullen.
On 6th April 1716 Charles Cockayne 4th Viscount Cullen [aged 29] died. His son Charles [aged 5] succeeded 5th Viscount Cullen.
On 18th April 1732 Charles Cockayne 5th Viscount Cullen [aged 21] and Ann Warren Viscountess Cullen were married. She by marriage Viscountess Cullen.
In 1810 Borlase Cockayne 6th Viscount Cullen [aged 70] died unmarried. Viscount Cullen extinct. The trustees of his estate sold Rushton Hall 1828 to William W Hope.