Ivor Gregorovitch was a highly-skilled and famous European wandmaker, considered a contemporary and rival to Garrick Ollivander. He is notable for crafting the wand of the Bulgarian Quidditch Seeker, Viktor Krum, and for being a one-time master of the Elder Wand. His possession and subsequent loss of this legendary wand made him a target of Lord Voldemort, who hunted him down and murdered him during the Second Wizarding War in his quest for the most powerful wand in existence.
Gregorovitch established a formidable reputation as a master wandmaker in continental Europe, with his skills being compared to those of the British master, Ollivander. One of his notable clients was the international Quidditch star Viktor Krum, whose wand was a Gregorovitch creation. At an unknown point in his life, Gregorovitch came into possession of the Elder Wand, one of the three Deathly Hallows. Unlike previous owners who kept the wand's identity a secret, Gregorovitch was indiscreet. He actively spread rumors that he had obtained the legendary wand and was studying its properties, hoping to use its fame to bolster his own business and reputation. This boasting, however, attracted the attention of a young and ambitious dark wizard, Gellert Grindelwald. Grindelwald located Gregorovitch's workshop, stunned the wandmaker from behind, and stole the Elder Wand, becoming its new master. Decades later, during Lord Voldemort's search for a wand that could overcome Harry Potter's, his quest led him to the Elder Wand. After interrogating Ollivander, Voldemort began his hunt for Gregorovitch. He eventually tracked the now-elderly wandmaker to his workshop. Using Legilimency, Voldemort forcibly extracted Gregorovitch's memory of the young, blond thief who had stolen the wand from him so many years ago. Having obtained all the information he needed, Voldemort coldly murdered the terrified Gregorovitch with the Killing Curse, silencing him forever.
In his old age, as seen through Lord Voldemort's eyes, Gregorovitch was a stout man with thick, white hair and a matching beard. His personality appears to have been ambitious and boastful in his prime, as he was willing to use the dangerous reputation of the Elder Wand for his own commercial gain. He was also a dedicated researcher of wandlore, attempting to duplicate the Elder Wand's properties. In his final moments, however, he was shown to be terrified and desperate, pleading for his life before being murdered by Voldemort.