Alexander Burton Conyngham, styled Earl of Mount Charles

Alexander Burton Conyngham, Earl of Mount Charles (b 1975), is married and has a daughter and son, Rory Nicholas Burton Conyngham, styled Viscount Slane (b 2010).

References

1. from HOTELS NEAR SLANE CASTLE "In 2009 Lord Henry and Lord Alex Mount Charles launched the Slane Castle Irish Whiskey at the Oasis concert: chosen by three generations of the Conyngham family, Slane Castle Irish Whiskey is a smooth, well balanced blend of malt and grain Irish Whiskey which has been matured for a least four years in Bourbon casks made of American oak. . ..."
2. from Why the new Lord of Slane is a chip off the old rocker "Of Scottish descent, the Conyngham family acquired land in Donegal in the early 17th century during the Plantation of Ulster. The title of Marquess of Conyngham was created in 1816 for Henry Conyngham, who at that point was based at Slane Castle."