Napoleon
Napoleon
a confection of thin pastry rolled up around a fruit filling and baked. :)
panini
Marzipan is not considered a pastry. Marzipan is a confection made of ground almonds or almond paste, egg whites, and sugar, often molded into decorative shapes. It can also be used to cover a cake as icing and can also be a filling for chocolates.
"Thousand leaf" is an English equivalent of the French word millefeuille. The masculine singular noun merges the numeral mille ("thousand") and the feminine singular noun feuille ("leaf") and refers to a three-layer puff pastry that reveals a confectioner's sugar dust and two layers of pastry cream. The pronunciation will be "meel-foy" in Alsatian French.
Eccles Cake
I suggest you don't do this. The filling will most likely taste awful in the pastry.
No one knows why London cheesecake is called as such. This pastry confection does not contain any cheese and is not even a cake. Contrary to its name, some of its ingredients contain jam, almonds, and coconut.
Suspect that this is a 'Chelsea bun'
Yes, usually a cream filling.
a flaky rectangular pastry with a sweet filling
Sweet pies have a sweet filling and a sweet pastry. (i.e the filling and pastry contain sugar). Savory pies do not.