After his passing, those who knew him well agreed that Ireland and rock ‘n roll are all the better for having known Lord Henry Mount Charles. Despite an aristocratic title and a castle on a 1,500-acre estate where the bloody Battle of the Boyne left a cleft in Irish history, he was an upstanding and outstanding Irish citizen. He did many great – and some silly – things through an extraordinary 74 years, but there was never any doubt that he loved his neighbours and Ireland dearly until his death from cancer this week.  The second year he ran a…