 Complete the following phrase:  Upon his return from Italy, he started working on a series of paintings with fellow painter Sigrid Kähler as a model. She was the daughter of ceramic artist Herman Kähler. In 1896 Ring married Kähler, who was only 21 years old at the time he was 42. Living together in Karrebæksminde the couple had three children before Kähler died in 1923, at age 49. In 1900, he received the bronze medal at the 