Originally hailing from Vallaki, Ladislau Krezkov was a hunter, who made many trips to the west of the Zarovich Valley looking for game. After the Wedding That Never Was, he found more than he was looking for when he was attacked by a Werewolf pack headed by the Wolf-Father. Infected by their bites, he was taken by the pack to the Werewolf Den and treated. Ladislau managed to survive the Lycanthropy, and realized he would never be allowed in his society again. Now a Cursed werewolf, he took up residence with the rest of the pack.
Though not as strong as the Wolf-Father and lacking magical abilities, Ladislau was a keen opportunist, and had a more tactical perspective than many of his ilk. He also developed a deep devotion to "Mother Night", Telyth, and became something of a spiritual leader in the group. This lead Jaghr to place him as his second-in-command when he attempted to attack Zachodgrad with a large pack of werewolves. Jaghr was ultimately slain by Saint Alizandra Markovia, but the cleric offered to cure the werewolves of their lycanthropy and allow them residency. As Jaghr's second, Ladislau was the first to step up, an act commemorated at Saint Markovia's Pool where a statue of Ladislau being healed by Alizandra was erected.
In truth, however, Ladislau harbored a great hatred for the Saint and her Abbey of Brilliant Worship. He detested the "Morninglord" Thestus as the opposite of his goddess, and reviled Saint Markovia for slaying the Wolf-Father. Behind the back of the Zachodgrad leaders, he sent information on weaknesses to their aggressor Strahd von Zarovich, ultimately enabling Strahd's victory in the Sunless March Of Saint Markovia and subsequent Siege Of Zachodgrad.
As a reward for his loyalty, Strahd bequeathed nobility to him, giving him riches and granting him title of Burgomaster. Ladislau wasted no time in establishing the noble Krezkov house in the small mountain community, his wealth far outstripping his peers. Subsequently, Ladislau renamed Zachodgrad after his family line, and removed the statue of Saint Markovia that was erected months prior. However, he knew that the people still revered her; so he lived pretending to do so as well, venerating the Morninglord and espousing Markovia's virtues when asked.
Ladislau governed conservatively, isolating Krezk, establishing a community-first mindset, and over decades, began erasing the historical reverence of Saint Markovia and the Morninglord. His life was ultimately cut short by the harsh mountain lifestyle demanded of Krezkites; he died of illness in his Burgomaster's Cottage, having sired three sons and establishing his house lineage.