His father was the acting-governor of the fortress of Breda who in 1793 was held responsible for the less-than-vigorous defense of that city against the French armies then invading the Dutch Republic. Alexander was court-martialed and sentenced to life imprisonment. Bylandt first married Mary Christian (daughter of rear-admiral Sir Hugh Cloberry Christian) on June 20, 1806 at the Isle of Wight. After _her_ death in 1818 he married Virginie Fr*derique Wilhelmine Aspasia Craan (daughter of Willem Benjamin Craan) on December 22, 1825 in St. Joost ten Node (Belgium). <sep>, Pronoun: her <sep>, A: Mary Christian <sep>, B: Virginie Fr*derique Wilhelmine Aspasia Craan