Archduke László Philipp or Lasdislaus Philipp was born on 16 July 1875 as the son of Archduke Joseph Karl of Austria. He entered the military as a Lieutenant of Ungarischen Infanterie Regiment Nr. 6. Major Heinrich Himmel von Agisburg received him as a Lieutenant.[1] He was redeployed to Ungarische Infanterie Regiment "Duke Joseph“ Nr. 37.
Generations are numbered by male-line descent from the first archdukes. Later generations are included although Austrian titles of nobility were abolished in 1919.