Career
In November 2005 he was elected Mayor of Horsens. At the time of his death, he was the chairman of Kommunernes Landsforening. He died of a heart attack while riding a bicycle in a cycling race.
His demise occurred the day before a Giro d"Italia stage was taking place in his city.
Trøjborg had been a key factor in bringing the 2012 Giro to Denmark. Minister of Industry from 25 January 1993 to 28 January 1994
Minister of Traffic from 28 January 1994 to 30 December 1996
Minister of Business and Industry from 30 December 1996 to 23 March 1998
Minister of Research from 23 March 1998 to 10 July 1999
Minister for Development Cooperation from 10 July 1999 to 21 December 2000
Defence Minister from 21 December 2000 to 27 November 2001.