Walter died at Perth on 27 February 1382. He left two children, Alexander (the future Earl of Ross) and Mariota, who would marry Donald Lord of the Isles. Although Alexander did eventually inherit the earldom, "de facto" control of Ross passed into the hands of the Earl of Buchan, aka the "Wolf of Badenoch", who was Countess Euphemia's second husband before she divorced him in 1392.