Duchess Meghan mourned the death of her beloved rescue dog, Guy the beagle, in an emotional post on social media Tuesday.

Meghan Markle is mourning the loss of her rescue beagle, Guy. Meghan rescued Guy from a kill shelter in Kentucky in 2015, before she met Prince Harry, and Guy lived in Canada, the U.K. and, finally, Montecito,

"Thank you for so many years of unconditional love, my sweet Guy. You filled my life in ways you'll never know."