Bertha Van Sterkenburg 
Bertha was born about 1262 in Utrecht,Utrecht,,Netherlands. Bertha's father was Gerard Van Sterkenburg. She was an only child. Bertha is no longer alive.
They had a son named Johan Heer.
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Children
Johan Heer Van Arkel
Johan Heer was born about 1285 in ,Arkel,Zuid-Holland,Netherlands. He died on December 24th, 1324 in Gorinchem,Zuid Holland,Netherlands.1
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