Sinn Fein chief Martin McGuinness told the Queen that he recognised she suffered loss in the Northern Ireland Troubles.
The Stormont Deputy First Minister revealed that he addressed the 1979 IRA murder of her cousin Earl Mountbatten when he met her privately in Belfast last Wednesday.
The former terror commander said the Queen was very gracious about what he said.
Mr McGuinness said he would not detail exactly what he said during the eight minute discussion in the Lyric Theatre, which the Duke of Edinburgh also attended, or how the Queen responded.
More top news
A decades-long ban on photography during official tours around the White House has been lifted, officials have announced.
Highs rising to the mid 30s across southeast England and well above average elsewhere in the UK.
England have selected leg spinner Adil Rashid in their 13-man squad to face Australia in the First Test at Cardiff.