conservatorship

noun

1. (countable, uncountable)The legal status of a conservator, similar to guardianship or trusteeship.
2. (countable, uncountable)The state of being under the control of a conservator.

   “However, the last few years of his life were primarily defined by his troubled family life—he is estranged from many of his relatives, at one point alleging that they tried to place him under a conservatorship[…]”