Historical clue formulations

• French sister — 2015-01-25
• Frère's sibling — 2012-10-12
• Frère's sibling — 2012-09-23
• French sister — 2011-07-29
• Nun, in Nanterre — 2008-05-06
• Sibling of un frère — 2005-01-16
• Frère's sibling — 1999-11-07
• Frere's sister — 1997-04-03