The lineage of the Koslow family can only be proven by their surname, as the family heritage has been lost many times along the way.
Praising Prim the Holy Mage now is purely due to the current awkward situation of the Leibron family. Apart from their illustrious ancestors, they simply have nothing to brag about.
Though they could boast about Count Lanton's heroic sacrifice for the human race, which heavily damaged the Orc army.
But the emotional intelligence of Hudson is not so low. No matter how they boast, the Bertelli Fortress still fell, and the Moxi Duchy was hence put into a defensive predicament.
In a sense, the awkward situation of the Leibron family is, to a large extent, a consequence of the fall of the Bertelli Fortress and the strategic predicament that followed.
Tragic heroes surely deserve to be praised, but unfortunately, over a hundred noble lords died in battle for the Moxi Duchy in order to fulfil their duties.