He joined active politics in 2006, when he was elected a councilor.
In 2014, he won a seat in the Brussels regional parliament.
His sons, Vincent and Francois Kompany are renowned footballers, playing for Manchester City and KSV Roeselare respectively.
Both brothers were quick to congratulate their father on social media for his feat.
“History! We are so proud of you dad,” Vincent wrote on his Instagram.
“He’s the first black mayor in Belgium – it’s never happened before, it’s historic…. congratulations to my dad!” he added.
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History! We are so proud of you dad. Came over from the DR Congo, as a refugee, in 1975. Now gained the trust of your local community becoming the first ever black elected mayor in Belgium! It was long over due but it’s progress. Massive congrats! #Belgium #Brussels #Ganshoren ✊🏾