• Was a Danish historical and portrait painter.
• Als was born at Copenhagen.
• Studied under Carl Gustaf Pilo.
• He attended the Kunstakademiet (the Royal Danish Academy of Fine Arts), and while still there gained recognition as a portraitist with a series of paintings of knights of the order of the Dannebrog.
• He won the academy's gold medal in 1755, and travelled to Rome and Paris in 1757–62.
• In Rome he entered the school of Anton Raphael Mengs.
• On his return to Denmark he painted portraits.
• He became a member of the Kunstakademiet in 1764, and professor at the Kunstakademiet in 1766.
• He died in 1775.