Memorial coats of arms commissioned in memory of nobles who had passed away, carried at funeral ceremonies and/or affixed to walls later, provided Christian Ackermann with a steady income. The largest number of memorial coats of arms from Ackermann’s workshop have been preserved in Tallinn’s cathedral: not only in the royal cathedral of that time, but also in the cathedral of the Bishop of Estland and in the cathedral of the Knighthood of Estland. At the same time, memorial coats of arms carved by Ackermann, one of his assistants or an imitator of Ackermann can also be found in country churches, for instance in the Ridala church in Lääne County and the Kaarma church in Saaremaa.