"Crathie Kirk is a small Church of Scotland parish church in the Scottish village of Crathie, best known for being the regular place of worship of the British Royal Family when they are in residence at the nearby Balmoral Castle."
Source: en.wikipedia.org/wiki/Crathie_Kirk
"The baptismal font was gifted by Arthur the Duke of Connaught and Strathearn who was Queen Victoria's son. It is made from polished Kemnay and Rubislaw granite."
Source: aboutaberdeen.com/Crathie-Church
At the bottom of the baptismal font is a bronze plaque with the following inscription:
The gift of
Their Royal Highnesses
The Duke and Duchess of
Connaught and Strathearn
1895