A general quadrilateral. No special name.
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An irregular heptagon.
A parallelogram does not have to be four right angles. A parallelogram is a four sided shape with two parallel lines.
With only those conditions, it doesn't have to be anything in particular.
A four sided figure with four equal sides and no right angles is a diamond, or a rhombus. If it had four right angles, it would be a square.
A square or a rectangle