In
Dzungaria, Renat helped the khans
Tsewang Rabtan and
Galdan Tseren organize their campaigns against
Qing rule in Central Asia. Among other things, he organized an artillery regiment and helped the Dzungars to cast cannons. Renat also met a Swedish woman who was also a Dzungar captive. This was
Brigitta Scherzenfeldt, who hailed from
Scania. Twice widowed, she had married a German prisoner who had taken Russian service and been assigned to Siberia. Their convoy was seized by Dzungar raiders in 1716, who killed her husband. She later married Renat. In 1733, Renat and his wife were allowed to leave. They returned the following year to
Stockholm, accompanied by four Dzungar female servants, who were baptized when they arrived in Sweden. Renat's family bought a house in
Gamla stan, where they settled down. In 1739, Renat was promoted to the rank of captain in the Swedish army. The same year, he remarried the industrialist
Elisabet Fritz. ==Central Asian maps==