The House of Flintridge ruled over the County of Eastvale for many decades after being enfranchised by the House of Wrynn during the Age of Plenty. Unfortunately, most of the family was slain in the waning months of the First War when a group of orcish raiders managed to slip past the front lines and torch the settlement.

When the Second War came to an end the few survivors of House Flintridge managed to make their way back to their home. Eastvale itself was mostly in ruins and the nearby forests had been almost entirely depleted by the Horde in the construction of the orcish armada.

Unwilling to let their family home fall the ruins, the Flintridges replanted the forests and rebuilt their home. In the years after restoring their family lands, the Flintridge's became enormously wealthy supplying lumber for the reconstruction of Stormwind City. With their newfound wealth, the family moved to the city, their manor within the County serving as a casual summer home.

In the years after the Third War the House of Flintridge was finally snuffed out. Count Flintridge, seeking a tutor for his two young children, and only remaining heirs to the County, Giles and Tilloa, hired Stalvan Mistmantle to educate the young nobleboy and noblegirl at their summer home in Eastvale; Flintridge Manor. The Mistmantle Massacre, as it would later be known, resulted when Stalvan, after being spurned by the young Tilloa, murdered the entire family with an axe from the nearby mills. Although Mistmantle was eventually brought to justice, the County was left without an heir and, according to Stormwind Law, was absorbed into the direct holdings of the King until he should appoint another to rule in his stead.