Usar "stringencies" en una oración

1. 'Our case rests on the premise that William is a true and proper heir, incontrovertibly born in wedlock, in accordance with the stringencies specified in the marriage contract

2. 'What are these stringencies you talked about?'

3. place whence Marian had written to her, which she determined to make use of as a last shift only, its rumoured stringencies being the reverse of tempting