Baron Killeen
Baron Killeen is in Baron Ireland.
Around 1445 Christopher Plunkett 1st Baron Killeen (age 80) died. His grandson Christopher Plunkett 2nd Baron Killeen succeeded 2nd Baron Killeen.
Around 1449 Christopher Plunkett 1st Baron Killeen was created 1st Baron Killeen.
In 1462 or 1467 Christopher Plunkett 2nd Baron Killeen (age 19) died of plague. His brother Edmund Plunkett 3rd Baron Killeen (age 13) succeeded 3rd Baron Killeen.
Before 05 Jan 1464 Christopher Plunkett 2nd Baron Killeen (age 16) and Elizabeth Welles Countess Kildare were married. She by marriage Baroness Killeen. She a great x 5 granddaughter of King Edward "Longshanks" I of England. 
On 18 Aug 1510 Edmund Plunkett 3rd Baron Killeen (age 61) died. His son John Plunkett 4th Baron Killeen succeeded 4th Baron Killeen.
Before 1522 John Plunkett 4th Baron Killeen (age 12) and Margaret Preston Baroness Killeen were married. She by marriage Baroness Killeen. They were third cousin once removed.
After 03 Dec 1542 John Plunkett 4th Baron Killeen (age 32) and Ellen Barnewall Baroness Killeen (age 29) were married. She by marriage Baroness Killeen. They were third cousins.
On 19 Mar 1550 John Plunkett 4th Baron Killeen (age 40) died. His son Patrick Plunkett 5th Baron Killeen (age 28) succeeded 5th Baron Killeen.
Before 03 Jun 1556 Patrick Plunkett 5th Baron Killeen (age 34) died. His brother Christopher Plunkett 6th Baron Killeen (age 33) succeeded 6th Baron Killeen.
Between 12 Mar 1561 and 08 Jun 1561 Christopher Plunkett 6th Baron Killeen (age 38) died. His half brother James Plunkett 7th Baron Killeen (age 19) succeeded 7th Baron Killeen.
On 13 Jan 1595 James Plunkett 7th Baron Killeen (age 53) died. His son Christopher Plunkett 8th Baron Killeen (age 31) succeeded 8th Baron Killeen. Genet Dillon Baroness Killeen by marriage Baroness Killeen.
Before 29 Jan 1613 Christopher Plunkett 8th Baron Killeen (age 49) died. His son Luke Plunkett 1st Earl of Fingall succeeded 9th Baron Killeen.