sentences:  In 1793, briefly, it was owned by a banker called Jean-Baptiste Vandenyver, but he was guillotined a few months later.Control of the island was then disputed, in the broader context of the redrawing of the Paris city limits, between the three municipalities/districts of Sèvres, Issy and .In 1794 the island was acquired by the entrepreneurial chemist, Armand Seguin, from whom it takes its name.