try this,
<record id="view_partner_property_form1" model="ir.ui.view">
<field name="name">res.partner.property.form.inherit1</field>
<field name="model">res.partner</field>
<field name="inherit_id" ref="base.view_partner_form"/>
<field name="arch" type="xml">
<xpath expr="//notebook/page[@string='History']" position="inside">
<!-- Customer Leads Group -->
<group name="grp_leads_history" string="Leads History">
<field name="lead_ids" colspan="4" nolabel="1">
<tree string="Partner Leads" editable="false" create="false" delete="false">
<field name="name" readonly="True"/>
<field name="create_date" readonly="True"/>
<field name="date_deadline" readonly="True"/>
<field name="priority" readonly="True"/>
<field name="planned_revenue" readonly="True"/>
<field name="probability" readonly="True"/>
<field name="state" readonly="True"/>
</tree>
</field>
</group>
</xpath>
</field>
</record>