Princess Anna of Mecklenburg Schwerin’s Wikipedia article is here. She was Friedrich Franz II, Grand Duke of Mecklenburg-Schwerin’s second wife, following Princess Augusta Reuss of Köstritz. She died a week after giving berth to their child. He went on to marry Princess Marie of Schwarzburg-Rudolstadt.
From the lost gallery’s photostream on flickr; crease-type flaws and spots removed with Photoshop.