Münster was living in Maresfield Park while Pechell and his wife, Blanche Henrietta Johnes Shelley, resided in Bellagio in Italy.

In 1915, during World War I, it was seized from him by the British government under the Trading With the Enemy laws as he was a German citizen.

[4] On 3 June 1890, he married Lady Muriel Henrietta Constance Hay (1863–1927) at St Andrews Church, Wells Street, London.

As the daughter of George Hay-Drummond, 12th Earl of Kinnoull, the event was depicted on the front page of The Illustrated London News.

[1] Maresfield Park estate, now owned by the British Government, was sold in 1924 to brewer and industrialist William Henry Abbey.