Dear All,
Alois Vesely (Luis Veseloff) was my great-grandmother's brother. We have postcards from his travels with the Pavlova ballet group. All his siblings were born in the Czech Republic. I will check my records regarding his birth. He was definitely not a count, though. His father worked for a construction bank.
The message on the last photo is in Czech. It says "To a beloved sister, sweet memory dedicated by her brother Alois Vesely", and the place listed is Buenos Aires.