I will add the phonetic transcription to the several lengthy attemps at describing her German nickname Miechen: [ˈmiːรงən].
Though in "
Peterhof ist ein Traum. Deutsche Prinzessinnen in Russland." she is also referred to as Minnchen.
Miechen really looked looked very beautiful in her youth, rather bland in middle age and wonderfully rotund in old age,
judging from this funny picture from a 1913 regimental dinner:
Sans jewels and in uniform, this grande dame (in both meanings of the word!) has something Sovietic about her.... Or is it just her great granddaughter Maria Vladimirovna that shines through? :-)