John 'Dispensator' or 'Le Dispenser' appeared in a list of the tenants and vassals of Walter fitz Alan Steward of Scotland on the period 1161–1171.
Roger 'Dispensator' witnessed a charter by Bricius de Douglas, the bishop of Moray granting the church of Deveth to Spynie between 1202 and 1222 .
In the year 1296 Henry de Spens, feudal baron, swore fealty to Edward I of England, and his name appears on the Ragman Rolls of 1296.
His heir Thomas de Spens witnessed several charters of Trinity college of Edinburgh between 1296 and 1324 and of the monastery of Soltray.
By the early 15th century, the family had risen to considerable prominence, which entitled John Spens of Lathallan to sit in the Parliament called by King James I of Scotland at Perth in 1434.
Charles VIII of France takes in the honour of "his beloved" Patrick baron de Spens the motto of the Spens'family :"Si Deus [pro nobis] quis contra [nos] ?".
He was translated to the bishopric of Aberdeen in 1459, and being considered a clever and shrewd negotiator, he was regularly employed on state business.
David Spens of Wormieston, however, was a loyal subject of Mary, and was denounced as a rebel by the Parliament summoned by Regent Lennox in August 1571.
David was one of the ringleaders of the attempt to seize Lennox at Stirling in September of that year, and he was given the task of taking the regent personally to hold as hostage.