The President Michael D Higgins and his wife Sabina are visiting Scotland after being invited by Britain's Prince Charles.
President and Mrs Higgins are there to attend the 10th anniversary celebrations of Dumfries House.
Prince Charles extended the invitation to President Higgins in May this year, when the president hosted the couple for meetings at Áras an Uachtaráin.
The president's visit to Scotland is the latest in a series of high-level meetings to further strengthen the bonds between Ireland and the UK.
President and Sabina Higgins will attend the celebrations marking the 10th anniversary of the opening up of the house to the public.
They will also hear of the significance of the upskilling of the talents of local young people from under-privileged settings as part of the Prince's Trust project.
Having previously been privately owned, Dumfries House and the surrounding estate are now managed by a trust and receives 24,000 visitors a year, employs some 150 people and provides a series of amenities to the local community.
President and Sabina Higgins will have private meetings with their hosts, and attend a live broadcast music recital of classical music.
The one day official visit will see President Higgins return to Ireland on Thursday.
President Higgins has met Prince Charles on a number of occasions - most recently in May 2017, when the pair discussed the future of Ireland’s relations with the UK.