Richard Colley Wesley, 1st Baron Mornington was an Irish peer, best remembered as the grandfather of Arthur Wellesley, 1st Duke of Wellington.

Dangan Castle is a former stately home in County Meath, Ireland, which is now in a state of ruin. It is situated by Dangan Church on the Trim Road. The castle is the former seat of the Wesley (Wellesley) family and is located outside the village of Summerhill. It was the childhood home of Field Marshal Arthur Wellesley, 1st Duke of Wellington.