HMS Raglan - First World War Royal Navy Abercrombie-class monitor laid down December 1, 1914.
The ship was named Robert E Lee in honor of the CS General Robert E Lee, however as the United States was still neutral, the ship was hurriedly renamed HMS M3 on May 31 1915. She was then named HMS Lord Raglan on June 20 1915 and again renamed HMS Raglan on June 23 1915.
Raglan was sunk with the loss of 127 lives, by the Turkish battlecruiser Yavuz Sultan Selim (formerly German battlecruiser SMS Goeben), the light cruiser Midilli (formerly German light cruiser SMS Breslau) and four destroyers.
But not before she sunk Midilli and badly damaged Yavuz Sultan Selim, January 20 1918.
Very cool to have ship named for your ancestor.