Indeed Ed Sheeran spends a 15th week at #1 with Shape Of You. So it is the longest running #1 since 1990 when Matthias Reim had his epic 16 weeks run with Verdammt ich lieb' dich.
Additionally Shape Of You adds a 30th consecutive week of British artists at the German top. Even this is a record.
Hard on the heels of Shape Of You is Despacito by Luis Fonsi Feat. Daddy Yankee which jumps further six places in its 12th chart week.