In a post-judgment hearing on Friday (US time), Sister Catherine Rose Holzman, 89, collapsed and died in the courtroom, the New York Daily News reports. Hollister had plans to turn the former convent into a boutique hotel.
"We extend our prayers today to the Immaculate Heart of Mary community and to all her friends and loved ones".
Perry's bid for the convent still has to get the Pope's approval.
The Sisters of the Most Holy and Immaculate Heart of the Blessed Virgin Mary have owned the property for more than four decades but have not lived there for several years. The legal battle were and still are for the rights over a former convent in Los Angeles and also included local restaurateur and aspiring developer Dana Hollister.
A Los Angeles judge ruled that the nuns' efforts to sell the property were "improper", allowing Katy to purchase the convent - if the Vatican were to approve.
The nuns fear that because Perry's $14.5 million offer was made to the archdiocese - without the nuns being involved - they would never receive any money from the sale, Billboard reported in 2015. Nonetheless, the optics are bad for Perry, and by conflating aspects of the story, some are attributing Holzman's death to Perry's persistence in acquiring the property. "She had nothing to do with forcing herself on us".
Before Friday's incident, Sisters Holzman and Rita Callanan spoke with Fox 11 about the ongoing case. And "to Katy Perry, please stop".
In December 2017, a judge order Hollister to pay nearly $10 million in compensatory damages to the Archdiocese of Los Angeles and Katy for attempting to interfere with the proposed sale. However, the sisters preferred Hollister's offer as it was more at $15.5 million and they had a stronger bond with her.