By Breaking Celebrity News Staff

The Christmas holiday was marred by sadness in the Osbourne family home. Their beloved chihuahua, Martin, died.

"Today is a sad day in the Osbourne family house hold we lost R dog martin of 14 years. Devastated does not quite sum it up! #NotSoMerryXmas," Kelly tweeted on Christmas.

The dog had been a regular on the Osbourne's former reality show.

Mom Sharon Osbourne called him "a sophisticated little creature."