Viscount Monson of Castlemaine in Kerry is in Viscount Ireland.
On 23rd August 1628 William Monson 1st Viscount Monson [aged 29] was created 1st Viscount Monson of Castlemaine in Kerry, 1st Baron Bellingnard of Limerick. Margaret Stewart 1st Countess Nottingham [aged 37] by marriage Viscountess Monson of Castlemaine in Kerry.