GILBRIDE, Earl of Angus, married a sister or daughter of John, Earl of Orkney, son of Harald Maddadson. | +——––––––—————-+————––––––––––––———-+ | | Magnus II., Earl of Orkney Gilbride I., Earl of and Caithness, d. 1239. Orkney and Caithness. | Gilbride II., Earl of Orkney and Caithness, d. 1256. | +———————–+——————–––————+ | | Magnus III., Earl of Orkney Matilda. and Caithness, d. 1275. | +——––––——–—-+—––––––––———————+ | | Magnus IV., Earl of Orkney John, Earl of Orkney and Caithness, d. 1284. and Caithness, d. circa 1310. | Magnus V., Earl of Orkney and Caithness, m. Katharina, d. circa 1320. | +——————————––––––––––––——-+——–––––––———+ | | Margaret, m. Simon Fraser, Isabella (?) m. Malise, who fell at Halidon Hill, 1333. Earl of Stratherne, who fell at Halidon Hill, 1333. ------------------------------------------------------------------------ III. THE STRATHERNE LINE OF THE EARLS OF ORKNEY.