Question: What is the date of birth of Princess Maria Ludwiga Theresia Of Bavaria's husband?
Sentence (from "Prince Ferdinand Pius, Duke of Calabria"): Prince Ferdinand Pius ("Ferdinando Pio Maria"), Duke of Calabria (25 July 1869, Rome – 7 January 1960, Lindau), was head of the House of Bourbon-Two Sicilies and pretender to the throne of the extinct Kingdom of the Two Sicilies from 1934 to 1960.
Relevant evidence: Yes