Hi Martin, as a starter here's the link to the birth record of Louis Pierre Joseph Verdeyen in Schaerbeek, a suburb of Brussels. born on 24.01.1891 in the Rue de Loche n° 62, son of Jacques Edmond Verdeyen, age 40 born in Campenhout, civil servant & his spouse Marie Rosalie Steeman, age 29, born in Audegem
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This is the birth record of Jacobus Edmond Verdeyen, born 05.07.1850 in Kampenhout [here], son of Petrus Joannes Verdeyen, innkeeper, age 40, born in Nederockerzeel, living in Campenhout & his spouse Maria Josepha Deconinck, age 38, born in Bergh.
They married on 26.01.1840 in Berg [here]: Peeter Jan Verdeyen, farmer, living in Nederockerzeel, born 19.07.1810, son of the late Antoon Verdeyen, born in Nederockerzeel and deceased 21.07.1823, and of Marie Casteels, age 55, born in Campenh[out] living in Nederockerzeel & Maria Josepha de Coninck, living in Bergh, born 18.06.1812, widow of Peeter-Joseph Lambrechts, deceased 03.11.1839, daughter of Jan Baptist de Coninck, police officer, age 48, born in Campenhout, and of Elisabeth Eeckeleers, age 47, born in Bergh, both living in Campenhout [for the marriage supplements see here]
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This is the birth record of Maria Rosalia Steeman, born 04.06.1861 in Audegem (/Oudegem) [here], daughter of Josephus Steeman, age 47, farmer, living in Audegem, and of his spouse Maria Ludovica Bogaers, age 43
[no idea why the moderator team removed your original English query]