How to use in-sentence of “erstwhile”:
+ On 15th August, 2000, another Sub-Division namely Gohpur Sub-Division was carved out from the erstwhile Biswanath Sub-Division.
+ Gilgit Baltistan historically belonged to the erstwhile princely state of Jammu and Kashmir.
+ Singh is the son of the last ruler of the erstwhile Jammu and Kashmir princely state of Jammu and Kashmir, Maharaja Hari Singh.
+ This constituency came into existence in 1951, as one of the 79 Vidhan Sabha constituencies of the erstwhile Madhya Bharat state.
+ A famous merger happened in 1708, between the East India Company and an erstwhile competitor to take control of the trade in India and its surrounding countries.