William III, 5th Earl of Ross

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William de Ross, Earl of Ross

Scots Gaelic: Uilleam mac Aodh O'Beolan, Mormaer na Rois, Latin: Willelmum de Ross, Earl of Ross
Also Known As: "Uilleam III of Ross"
Birthplace: Fearn, Ross, Ross And Cromarty, Scotland
Death: Died in Delny, Ross And Cromarty,Scotland
Immediate Family:

Son of Hugh, 4th Earl of Ross and Matilda (Maud) Bruce
Husband of Mary MacDonald and Fionnuala MacDonald
Father of Euphemia Stewart, Countess of Ross; Joanna / Janet Fraser and William Ross
Brother of Marjory de Ross and John Ross
Half brother of Hugh Ross, 1st of Balnagowen; Sir John Ross, Knight; Lillias de Ross; Janet de de Ros; Euphemia de Ross, Queen Consort of Scotland and 3 others

Occupation: Justiciar of Scotia
Managed by: Gwyneth McNeil
Last Updated:

About William III, 5th Earl of Ross

Uilleam III, Earl of Ross From Wikipedia, the free encyclopedia http://en.wikipedia.org/wiki/Uilleam_III,_Earl_of_Ross

Uilleam (or William) III of Ross was the fourth successor of Ferchar mac in tSagairt, as Mormaer of Ross (1333/6-1370).

Uilleam came into his inheritance at a torrid time, his father Aodh dying at the Battle of Halidon Hill. Uilleam temporarily lost many of his lands. However, he returned from Norway in 1336 and regained them. Uilleam cultivated the friendship of the Stewarts, and was rewarded by being appointed Justiciar of Scotia. Uilleam's reign was marked by continued strife with his nominal vassal, Ranald MacRuadridh (Lord of Skye). In 1348, Uilleam killed Ranald with eight of his men at the nunnery of Elcho.

Uilleam married Màiri, the daughter of Aonghas Óg MacDomhnaill. They had an heir, Uilleam, but he died in 1357. Uilleam's lands were forfeited by King David II in 1370. Uilleam died in 1372, and the Mormaerdom was given to his daughter Euphemia with her husband Sir Walter Leslie, thus ending the dynasty started a century and a half before by the great Ferchar. The dominions eventually passed to the MacDonald Lords of the Isles.


Roberts, John L., Lost Kingdoms: Celtic Scotland in the Middle Ages, (Edinburgh, 1997)

External links

Genealogy Page Great Clan Ross (N/B Unfortunately, much info depends on this unreliable site) Preceded by Aodh Mormaer of Ross 1333/6-1370/2 Succeeded by Euphemia m. Walter Leslie

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William III, 5th Earl of Ross's Timeline

Fearn, Ross, Ross And Cromarty, Scotland
Age 11
May 25, 1342
Age 33
Ayr, Scotland
Age 36
Ross & Cromarty, Scotland
February 9, 1372
Age 63
Delny, Ross And Cromarty,Scotland
Ross & Cromarty, Scotland