ROBERT de Ros "Fursan", son of EVERARD de Ros & his wife Rohese Trussebut ([1172/73]-before 23 Dec 1226, bur London).
The Liber Memorandorum Ecclesie de Bernewelle records that "Albreda de Harecurt" was mother of three sisters "Roysia, Hyllaria et Agatha", adding that Rohese was mother of "Robertus de Ros senior"[374].
A manuscript narrating the foundation of Rievaulx Abbey records that “Everardum de Roos” married “Rosam”, by whom he was father of “Robertum de Roos dictum Fursan”[375].
The Rotuli de Dominabus of 1185 records “uxor Everardi de Ros que fuit filia Willelmi Trussebut…xxxv” and her land “in Strowestone”, adding that she had "ii filios, primogenitus est xiii annorum et terra eius est in custodia Ranulfi de Glanville"[376].
The Red Book of the Exchequer, listing scutage payments in [1190/91], records "Robertus de Ros" paying "lx s x d" in Yorkshire[377].
The Red Book of the Exchequer, listing scutage payments in [1194/95], records "Robertus de Ros" paying "vi l xviii s" in Yorkshire[378].
The Red Book of the Exchequer records "Robertus de Ros" holding parts of one knight’s fee in "Hokintone" in Norfolk, Suffolk, and "baronium de Werc" with two knights’ fees in Northumberland, in [1210/12][379].
The Testa de Nevill includes a writ of King John dated 1212 which records "Robertus de Ros" holding "baroniam de Werke" in Northumberland which had been granted by King Henry I "vel datum per marritagium vel elemosinam vel aliquo modo"[380].
Bailiff of the royal castellany of Bonneville sur Toques in Normandy.
Sheriff of Cumberland 1213-1215. He was one of the barons appointed to enforce Magna Carta. He became a Templar, and retired from secular life in 1226[381].
A manuscript narrating the foundation of Rievaulx Abbey records that “Robertum de Roos dictum Fursan” became “Templarius” and was buried "Londini"[382].
m (Haddington early 1191) as her second husband, ISABEL, widow of ROBERT de Brus Lord of Annandale, illegitimate daughter of WILLIAM I "the Lion" King of Scotland & his mistress --- Avenal.
The Chronicle of Melrose records the marriage in 1183 of "William king of the Scotshis daughter Isabella" and "Robert de Brus"[383].
The Chronicle of Melrose records the marriage in 1191 of "the king of Scots…his daughter Ysembel (the widow of Robert de Brus)" and "Robert de Ross" at Haddington[384].
A manuscript narrating the foundation of Rievaulx Abbey records that “Robertum de Roos dictum Fursan” married “Isabellam filiam regis Scotiæ”, by whom he was father of “Willielmum de Roos et Robertum”, and also lists their descendants[385].
Robert & his wife had two children:
1. WILLIAM de Ros (-[1264]), bur Kirkham)....&c.
2. ROBERT de Ros.....&c.
https://fmg.ac/Projects/MedLands/ENGLISHNOBILITYMEDIEVAL3P-S.htm#Ro...
