No. Although last names are not normally used in royalty, the Queen and Prince Philip decided to give their children the name Mountbatten-Windsor, so it will still be the House of Windsor.
Yes, the Windsors and the Stuarts are related through a shared ancestry in the British royal lineage. The House of Windsor, established in 1917, is a branch of the House of Saxe-Coburg and Gotha, which is connected to the Stuarts through various marriages and royal alliances. Notably, Queen Victoria, a common ancestor, connects both houses, as her descendants include members of both the Windsor and Stuart lines.
Charles Dowler House was created in 1877.
Charles Andres House was created in 1866.
Charles Schuebeler House was created in 1860.
Charles Newton House was created in 1833.
Charles Geoghegan House was created in 1915.
Charles Gill House was created in 1860.
Charles Baker House was created in 1880.
Charles Capron House was created in 1874.
Charles Haskell House was created in 1879.
Charles Ives House was created in 1780.
Charles Daniels House was created in 1830.