1950s where a new generation of players ensured that AB between 1950 and 1958 each year was ranked top 4. The club became Danish Champions in 1951 and 1952, and the Copenhagen Cup was won in 1950, while the club participated in the Cup final in 1953 and 1956. In 1960, Knud Lundberg ended his career as 40-year-old after 340 matches for AB's first-team squad. AB was relegated to the second tier for the first time ever in 1960 but got promoted back to the first tier the following year. Moving out to Gladsaxe In 1958 the Danish Ministry of Education terminated the lease of the ground of AB's training facilities. This happened despite the fact that the ministry had previously stated that AB did not have to fear a resignation. In spite of protests from AB's board of directors and the fact that AB through the club's contribution to student sport throughout the previous 70 years had exempted the university from carrying out this task, the Ministry chose to terminate the lease for the entire area as of April 1, 1962 The ministry could not relocate AB to another area in Copenhagen. The club was allowed to use the facilities for a period of time despite the termination of the lease, but the prospect of being left without training facilities pushed the club to negotiate a move of the club with communes in Copenhagen's suburbs. Gladsaxe Municipality met the club with both goodwill and realism and thus became AB's new base. The move to Gladsaxe was helped by the mayor of the city Erhard Jacobsen who wanted to make Gladsaxe a pioneer municipality, which involved getting an elite sports club to the municipality. At the same time, there was a great deal of support for the move from the municipal council, the sports committee, the engineers of the municipality and Bagsværd Idrætsforening, which offered to join an association with AB. After pulling and opposition among both the members of AB and Bagsværd Idrætsforening, the two clubs held a founding general assembly on January 17, 1962, where the association became a reality. For AB, the association and relocation involved a union change from DBU Copenhagen to DBU Zealand. At the same time, the association meant that university affiliation was no longer required to become a member of the club. The association with Bagsværd Idrætsforening also meant that AB got handball