Why the last privately raised regiment is debatable

Was Princess Patricia's Canadian Light Infantry the last privately raised regiment?

The claim remains unresolved because a later ducal cavalry formation may count as a revived regiment rather than an entirely new one.

Whether Princess Patricia's Canadian Light Infantry was the last privately raised regiment depends on how later formations are classified. A later cavalry unit associated with a duke is recalled, although its name remains uncertain. Its status depends on whether it counts as a new privately raised formation or the revival of an older regiment that had been disbanded. A ducal family reportedly offered bonuses to recruits who joined the unit carrying its name, but the formation's identity remains unresolved. The difficulty of recalling it also illustrates how unusual regimental histories can fall outside familiar narratives. Continuity of title and lineage can change an apparent chronological first or last.