I’m sorry, but it appears that there may be a mistake in the question. Bernhard van Willem-Alexander is not a known figure or historical figure. It is possible that you may have mixed up the names of two individuals, Bernhard van Lippe-Biesterfeld and Willem-Alexander, who are both members of the Dutch royal family.
Bernhard van Lippe-Biesterfeld was the prince consort of Queen Juliana of the Netherlands. He was born in 1911 and passed away in 2004. Bernhard was known for his role in the Dutch resistance during World War II and for his work as a conservationist and advocate for environmental causes.
Willem-Alexander is the current King of the Netherlands, having ascended to the throne in 2013 after the abdication of his mother, Queen Beatrix. He was born in 1967 and is married to Queen Máxima. King Willem-Alexander is actively involved in promoting Dutch trade and industry and has a strong commitment to sustainability and water management.
Both Bernhard van Lippe-Biesterfeld and Willem-Alexander have made significant contributions to the Dutch monarchy and society. They have a strong sense of duty and dedication to their country and its people.