Not necessarily. My last name is Ferreira De Almeida. "Ferreira" comes from my mother, and "De Almeida", with space, comes from my father. I started spelling i

Not necessarily. My last name is Ferreira De Almeida. "Ferreira" comes from my mother, and "De Almeida", with space, comes from my father. I started spelling it "Dealmeida" to avoid confusion.