Robert had acquired these lands just five years before and this could have been attributed to the influence of Alexander Vaus or Vass who was the Bishop of Galloway.
It is not possible to show which is the senior line, the Vasses of Ross-shire or Galloway, but it is possible that both descend from the de Vaux family who owned lands in East Lothian in the 13th century and who built the earliest surviving parts of Dirleton Castle.
"[8] In 1498, along with Angus MacCulloch of Plaids, John Vass of Lochslin paid 35 merks to a burgess of Dysart in Fife.
[7] There is a tradition that Alexander Vass who was sheriff to William Munro, 12th Baron of Foulis was killed supporting him at the Battle of Drumchatt in 1501.
[7] In 1512, John Vass received a royal charter for the lands of Lochslin and Newton which he had resigned into the King's hands.
He appears during this time as a burgess and provost of Inverness without any territorial designation but as Jasper Vass of Lochslin in matters outside of the burgh.
In 1545/6 he put his name to an Inverness statute directed against the "indrawing of outlandish men of great clans nor able nor qualified to use merchandise nor make daily residence, nor policy, nor any manner of bigging within the said burgh".
In 1578/9 he received a royal charter confirming his purchase of part of the lands of Arkboll from Alexander Ross of Little Tarrell.
In 1591, John Vass of Lochslin and his heirs appear in a confirmation charter of the lands of Barnbarroch in Galloway - which they would later inherit.
He appears on April 28, 1608 in connection with his lands in Inverness, as his father's eldest son, and the witnesses are his younger brothers, David and Jasper.
With the consent of his brothers, David, Jasper, James and Alexander, he sold the lands of Over Pitneilies to George Munro of Meikle Tarrel on August 7/September 24, 1610.