Palmerston, the famous Chief Mouser of the British Foreign Office, has died in Bermuda. Adored by many, Palmerston was a beloved pet and family member, and news of his passing was shared on social media. Details regarding his exact age were not known, as he had been adopted from a rescue shelter and served as Chief Mouser until his retirement in 2020 after four years in the role. After retirement, Palmerston briefly returned to work in a part-time role as a 'cat relations consultant' to Bermuda’s new governor, with updates being shared online under his name. Palmerston's death was also noted by Larry, the Chief Mouser at the UK Prime Minister's residence, who expressed condolences despite their occasional political differences. This reflects Palmerston's widespread recognition and the bond shared among the official residence cats in the UK. The passing of Palmerston not only marks the loss of a cherished feline figure but also highlights the unique roles that pets, particularly in political offices, play in the public's affection and their unofficial contributions to the beloved stories of government life.