His Excellency also paid tribute to the outgoing captain Stan Clucas
Paul Costain has been sworn in as Captain of the Parish of Rushen at a special ceremony held at Government House.
The post is largely ceremonial and is an honour in recognition of the senior resident of the parish.
Presenting Mr Costain with his Badge of Office and framed warrant, His Excellency congratulated Mr Costain on his new appointment and paid tribute to outgoing Captain, Stan Clucas, who has retired from the role.
"He enjoyed hearing the Manx national anthem!": King greets guests at Government House
His Majesty meets representatives of the Manx community at Garden Party
Crowds gathered in glorious sunshine to see the Monarch
Live blog: King Charles visits the Isle of Man
Updates from the Lord of Mann's first visit to the Island since ascending to the throne
King speaks of Island's 'enduring partnership' with the crown
King Charles III spoke in Tynwald this lunchtime