Answer
Three Eredivisie titles were secured by Marc Overmars during his spell at Ajax. Overmars was part of the highly successful Ajax team of the mid-1990s, known for their attractive style of play under manager Louis van Gaal. The tricky winger, known for his pace and skill, made significant contributions to the team's success, which included winning three consecutive Eredivisie titles from 1993-94 to 1995-96.