1309 Robert de Tosny died shortly before 28 November 1309, "Nov. 28. La Grove. Order to the escheator on this side of Trent to take into the king's hand the lands late of Robert de Tony, deceased, tenant in chief." [1]
[1] Calendar of the Fine rolls preserved in the Public Record Office, Vol. II, Edward II, 1307-1319 (London: HMSO, 1912), 52, [InternetArchive], [HathiTrust].