French formal garden
After her husband died in 1691, Christiana retreated to her widow seat, Delitzsch Castle, which she had received in 1688, replacing the earlier jointure Sangerhausen Castle. Delitzsch Castle had been renovated and remodeled to serve as her residence, however, the renovated had not been completed when she moved in on 31 May 1692. During her time at Delitsch, Christiana added a French formal garden to the castle.